78775071627 has 12 divisors (see below), whose sum is σ = 122181743976. Its totient is φ = 45014326560.

The previous prime is 78775071589. The next prime is 78775071647. The reversal of 78775071627 is 72617057787.

It is not a de Polignac number, because 78775071627 - 2²⁰ = 78774023051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78775071647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 267942274 + ... + 267942567.

It is an arithmetic number, because the mean of its divisors is an integer number (10181811998).

Almost surely, 2^78775071627 is an apocalyptic number.

78775071627 is a deficient number, since it is larger than the sum of its proper divisors (43406672349).

78775071627 is a wasteful number, since it uses less digits than its factorization.

78775071627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535884858 (or 535884851 counting only the distinct ones).

The product of its (nonzero) digits is 8067360, while the sum is 57.

The spelling of 78775071627 in words is "seventy-eight billion, seven hundred seventy-five million, seventy-one thousand, six hundred twenty-seven".