78325245928 has 16 divisors (see below), whose sum is σ = 146994958080. Its totient is φ = 39126590448.

The previous prime is 78325245913. The next prime is 78325245931. The reversal of 78325245928 is 82954252387.

It is a super-2 number, since 2×78325245928² (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, 4494826 + ... + 4512217.

It is an arithmetic number, because the mean of its divisors is an integer number (9187184880).

Almost surely, 2^78325245928 is an apocalyptic number.

It is an amenable number.

78325245928 is a deficient number, since it is larger than the sum of its proper divisors (68669712152).

78325245928 is a wasteful number, since it uses less digits than its factorization.

78325245928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9008136 (or 9008132 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 55.

The spelling of 78325245928 in words is "seventy-eight billion, three hundred twenty-five million, two hundred forty-five thousand, nine hundred twenty-eight".