77225277627 has 12 divisors (see below), whose sum is σ = 114141754584. Its totient is φ = 50286227040.

The previous prime is 77225277617. The next prime is 77225277629. The reversal of 77225277627 is 72677252277.

77225277627 is a `hidden beast` number, since 7 + 7 + 2 + 2 + 5 + 2 + 7 + 7 + 627 = 666.

It is not a de Polignac number, because 77225277627 - 2⁷ = 77225277499 is a prime.

It is a super-2 number, since 2×77225277627² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (77225277629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99773874 + ... + 99774647.

It is an arithmetic number, because the mean of its divisors is an integer number (9511812882).

Almost surely, 2^77225277627 is an apocalyptic number.

77225277627 is a deficient number, since it is larger than the sum of its proper divisors (36916476957).

77225277627 is a wasteful number, since it uses less digits than its factorization.

77225277627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199548570 (or 199548567 counting only the distinct ones).

The product of its digits is 8067360, while the sum is 54.

The spelling of 77225277627 in words is "seventy-seven billion, two hundred twenty-five million, two hundred seventy-seven thousand, six hundred twenty-seven".