78604327956 has 48 divisors (see below), whose sum is σ = 228667138560. Its totient is φ = 20416708320.

The previous prime is 78604327933. The next prime is 78604327979. The reversal of 78604327956 is 65972340687.

It is an interprime number because it is at equal distance from previous prime (78604327933) and next prime (78604327979).

It is a junction number, because it is equal to n+sod(n) for n = 78604327896 and 78604327905.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42533886 + ... + 42535733.

It is an arithmetic number, because the mean of its divisors is an integer number (4763898720).

Almost surely, 2^78604327956 is an apocalyptic number.

It is an amenable number.

78604327956 is an abundant number, since it is smaller than the sum of its proper divisors (150062810604).

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

78604327956 is a wasteful number, since it uses less digits than its factorization.

78604327956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85069644 (or 85069642 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 57.

The spelling of 78604327956 in words is "seventy-eight billion, six hundred four million, three hundred twenty-seven thousand, nine hundred fifty-six".