72707655627 has 12 divisors (see below), whose sum is σ = 107003720304. Its totient is φ = 47557208400.

The previous prime is 72707655619. The next prime is 72707655649. The reversal of 72707655627 is 72655670727.

It is a happy number.

72707655627 is a `hidden beast` number, since 7 + 2 + 7 + 0 + 7 + 6 + 5 + 5 + 627 = 666.

It is not a de Polignac number, because 72707655627 - 2³ = 72707655619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72707655127) 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, 76212999 + ... + 76213952.

It is an arithmetic number, because the mean of its divisors is an integer number (8916976692).

Almost surely, 2^72707655627 is an apocalyptic number.

72707655627 is a deficient number, since it is larger than the sum of its proper divisors (34296064677).

72707655627 is a wasteful number, since it uses less digits than its factorization.

72707655627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152427010 (or 152427007 counting only the distinct ones).

The product of its (nonzero) digits is 8643600, while the sum is 54.

The spelling of 72707655627 in words is "seventy-two billion, seven hundred seven million, six hundred fifty-five thousand, six hundred twenty-seven".