70140556631 has 4 divisors (see below), whose sum is σ = 72403155264. Its totient is φ = 67877958000.

The previous prime is 70140556609. The next prime is 70140556663. The reversal of 70140556631 is 13665504107.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70140556631 - 2⁶ = 70140556567 is a prime.

It is a super-2 number, since 2×70140556631² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70140555631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1131299270 + ... + 1131299331.

It is an arithmetic number, because the mean of its divisors is an integer number (18100788816).

Almost surely, 2^70140556631 is an apocalyptic number.

70140556631 is a deficient number, since it is larger than the sum of its proper divisors (2262598633).

70140556631 is a wasteful number, since it uses less digits than its factorization.

70140556631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2262598632.

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 70140556631 in words is "seventy billion, one hundred forty million, five hundred fifty-six thousand, six hundred thirty-one".