70556674638 has 64 divisors (see below), whose sum is σ = 147847772160. Its totient is φ = 22405033728.

The previous prime is 70556674633. The next prime is 70556674697. The reversal of 70556674638 is 83647665507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70556674633) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66001968 + ... + 66003036.

It is an arithmetic number, because the mean of its divisors is an integer number (2310121440).

Almost surely, 2^70556674638 is an apocalyptic number.

70556674638 is an abundant number, since it is smaller than the sum of its proper divisors (77291097522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70556674638 is a wasteful number, since it uses less digits than its factorization.

70556674638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2593.

The product of its (nonzero) digits is 25401600, while the sum is 57.

The spelling of 70556674638 in words is "seventy billion, five hundred fifty-six million, six hundred seventy-four thousand, six hundred thirty-eight".