78925867712 has 28 divisors (see below), whose sum is σ = 156646799736. Its totient is φ = 39455808000.

The previous prime is 78925867711. The next prime is 78925867759. The reversal of 78925867712 is 21776852987.

It is a super-2 number, since 2×78925867712² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78925867711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255212 + ... + 472212.

It is an arithmetic number, because the mean of its divisors is an integer number (5594528562).

Almost surely, 2^78925867712 is an apocalyptic number.

It is an amenable number.

78925867712 is a deficient number, since it is larger than the sum of its proper divisors (77720932024).

78925867712 is a wasteful number, since it uses less digits than its factorization.

78925867712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222696 (or 222686 counting only the distinct ones).

The product of its digits is 23708160, while the sum is 62.

The spelling of 78925867712 in words is "seventy-eight billion, nine hundred twenty-five million, eight hundred sixty-seven thousand, seven hundred twelve".