70117658637 has 16 divisors (see below), whose sum is σ = 101357491200. Its totient is φ = 42859732032.

The previous prime is 70117658609. The next prime is 70117658707. The reversal of 70117658637 is 73685671107.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-70117658637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70117658637.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70117650637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6027373 + ... + 6038994.

It is an arithmetic number, because the mean of its divisors is an integer number (6334843200).

Almost surely, 2^70117658637 is an apocalyptic number.

It is an amenable number.

70117658637 is a deficient number, since it is larger than the sum of its proper divisors (31239832563).

70117658637 is a wasteful number, since it uses less digits than its factorization.

70117658637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12066532.

The product of its (nonzero) digits is 1481760, while the sum is 51.

The spelling of 70117658637 in words is "seventy billion, one hundred seventeen million, six hundred fifty-eight thousand, six hundred thirty-seven".