78445727675 has 48 divisors (see below), whose sum is σ = 112301502720. Its totient is φ = 53244293760.

The previous prime is 78445727669. The next prime is 78445727677. The reversal of 78445727675 is 57672754487.

It is not a de Polignac number, because 78445727675 - 2⁸ = 78445727419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78445727677) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31796792 + ... + 31799258.

It is an arithmetic number, because the mean of its divisors is an integer number (2339614640).

Almost surely, 2^78445727675 is an apocalyptic number.

78445727675 is a deficient number, since it is larger than the sum of its proper divisors (33855775045).

78445727675 is a wasteful number, since it uses less digits than its factorization.

78445727675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4260 (or 4255 counting only the distinct ones).

The product of its digits is 92198400, while the sum is 62.

The spelling of 78445727675 in words is "seventy-eight billion, four hundred forty-five million, seven hundred twenty-seven thousand, six hundred seventy-five".