7818322732416 has 384 divisors, whose sum is σ = 26904773376000. Its totient is φ = 2228602844160.

The previous prime is 7818322732373. The next prime is 7818322732421. The reversal of 7818322732416 is 6142372238187.

It is a happy number.

7818322732416 is a `hidden beast` number, since 7 + 8 + 1 + 8 + 322 + 73 + 241 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a super-2 number, since 2×7818322732416² (a number of 27 digits) contains 22 as substring.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 72933705 + ... + 73040823.

It is an arithmetic number, because the mean of its divisors is an integer number (70064514000).

Almost surely, 2^{7818322732416} 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 7818322732416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13452386688000).

7818322732416 is an abundant number, since it is smaller than the sum of its proper divisors (19086450643584).

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

7818322732416 is a wasteful number, since it uses less digits than its factorization.

7818322732416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107587 (or 107562 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 54.

The spelling of 7818322732416 in words is "seven trillion, eight hundred eighteen billion, three hundred twenty-two million, seven hundred thirty-two thousand, four hundred sixteen".