78971465075 has 6 divisors (see below), whose sum is σ = 97924616724. Its totient is φ = 63177172040.

The previous prime is 78971465047. The next prime is 78971465141. The reversal of 78971465075 is 57056417987.

It is not a de Polignac number, because 78971465075 - 2²² = 78967270771 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1579429277 + ... + 1579429326.

It is an arithmetic number, because the mean of its divisors is an integer number (16320769454).

Almost surely, 2^78971465075 is an apocalyptic number.

78971465075 is a deficient number, since it is larger than the sum of its proper divisors (18953151649).

78971465075 is a wasteful number, since it uses less digits than its factorization.

78971465075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3158858613 (or 3158858608 counting only the distinct ones).

The product of its (nonzero) digits is 14817600, while the sum is 59.

The spelling of 78971465075 in words is "seventy-eight billion, nine hundred seventy-one million, four hundred sixty-five thousand, seventy-five".