78012955027 has 12 divisors (see below), whose sum is σ = 90830209080. Its totient is φ = 66808971936.

The previous prime is 78012954997. The next prime is 78012955037. The reversal of 78012955027 is 72055921087.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-78012955027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78012955037) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 649773 + ... + 760414.

It is an arithmetic number, because the mean of its divisors is an integer number (7569184090).

Almost surely, 2^78012955027 is an apocalyptic number.

78012955027 is a deficient number, since it is larger than the sum of its proper divisors (12817254053).

78012955027 is a wasteful number, since it uses less digits than its factorization.

78012955027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411330 (or 1411323 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 46.

The spelling of 78012955027 in words is "seventy-eight billion, twelve million, nine hundred fifty-five thousand, twenty-seven".