78332357516 has 12 divisors (see below), whose sum is σ = 156664715088. Its totient is φ = 33571010352.

The previous prime is 78332357501. The next prime is 78332357527. The reversal of 78332357516 is 61575323387.

It is a happy number.

78332357516 is an admirable number.

It is a super-2 number, since 2×78332357516² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1398792071 + ... + 1398792126.

It is an arithmetic number, because the mean of its divisors is an integer number (13055392924).

Almost surely, 2^78332357516 is an apocalyptic number.

It is an amenable number.

78332357516 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

78332357516 is a wasteful number, since it uses less digits than its factorization.

78332357516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2797584208 (or 2797584206 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 50.

The spelling of 78332357516 in words is "seventy-eight billion, three hundred thirty-two million, three hundred fifty-seven thousand, five hundred sixteen".