70647637670 has 16 divisors (see below), whose sum is σ = 127945908720. Its totient is φ = 28085685984.

The previous prime is 70647637583. The next prime is 70647637691. The reversal of 70647637670 is 7673674607.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21669425 + ... + 21672684.

It is an arithmetic number, because the mean of its divisors is an integer number (7996619295).

Almost surely, 2^70647637670 is an apocalyptic number.

70647637670 is a deficient number, since it is larger than the sum of its proper divisors (57298271050).

70647637670 is a wasteful number, since it uses less digits than its factorization.

70647637670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43342279.

The product of its (nonzero) digits is 6223392, while the sum is 53.

The spelling of 70647637670 in words is "seventy billion, six hundred forty-seven million, six hundred thirty-seven thousand, six hundred seventy".