1816426527552 has 896 divisors, whose sum is σ = 6664642682880. Its totient is φ = 472382668800.

The previous prime is 1816426527547. The next prime is 1816426527557. The reversal of 1816426527552 is 2557256246181.

1816426527552 is a `hidden beast` number, since 1 + 8 + 1 + 6 + 4 + 2 + 65 + 27 + 552 = 666.

It is an interprime number because it is at equal distance from previous prime (1816426527547) and next prime (1816426527557).

It is a super-2 number, since 2×1816426527552² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1816426527557) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5389989528 + ... + 5389989864.

It is an arithmetic number, because the mean of its divisors is an integer number (7438217280).

Almost surely, 2^{1816426527552} is an apocalyptic number.

1816426527552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1816426527552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3332321341440).

1816426527552 is an abundant number, since it is smaller than the sum of its proper divisors (4848216155328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1816426527552 is a wasteful number, since it uses less digits than its factorization.

1816426527552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756 (or 740 counting only the distinct ones).

The product of its digits is 8064000, while the sum is 54.

The spelling of 1816426527552 in words is "one trillion, eight hundred sixteen billion, four hundred twenty-six million, five hundred twenty-seven thousand, five hundred fifty-two".