79278050655 has 24 divisors (see below), whose sum is σ = 137425736448. Its totient is φ = 42278412096.

The previous prime is 79278050609. The next prime is 79278050707. The reversal of 79278050655 is 55605087297.

79278050655 is a `hidden beast` number, since 7 + 9 + 2 + 7 + 80 + 506 + 55 = 666.

It is not a de Polignac number, because 79278050655 - 2⁸ = 79278050399 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 605649 + ... + 724821.

It is an arithmetic number, because the mean of its divisors is an integer number (5726072352).

Almost surely, 2^79278050655 is an apocalyptic number.

79278050655 is a deficient number, since it is larger than the sum of its proper divisors (58147685793).

79278050655 is a wasteful number, since it uses less digits than its factorization.

79278050655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133967 (or 133964 counting only the distinct ones).

The product of its (nonzero) digits is 5292000, while the sum is 54.

The spelling of 79278050655 in words is "seventy-nine billion, two hundred seventy-eight million, fifty thousand, six hundred fifty-five".