1798423215264 has 240 divisors, whose sum is σ = 5698442534400. Its totient is φ = 553120565760.

The previous prime is 1798423215221. The next prime is 1798423215269. The reversal of 1798423215264 is 4625123248971.

It is a happy number.

1798423215264 is a `hidden beast` number, since 1 + 7 + 9 + 8 + 423 + 2 + 152 + 64 = 666.

It is a super-2 number, since 2×1798423215264² (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 self number, because there is not a number n which added to its sum of digits gives 1798423215264.

It is not an unprimeable number, because it can be changed into a prime (1798423215269) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 87296037 + ... + 87316635.

It is an arithmetic number, because the mean of its divisors is an integer number (23743510560).

Almost surely, 2^{1798423215264} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1798423215264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2849221267200).

1798423215264 is an abundant number, since it is smaller than the sum of its proper divisors (3900019319136).

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

1798423215264 is a wasteful number, since it uses less digits than its factorization.

1798423215264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23225 (or 23208 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The spelling of 1798423215264 in words is "one trillion, seven hundred ninety-eight billion, four hundred twenty-three million, two hundred fifteen thousand, two hundred sixty-four".