70630909931 has 4 divisors (see below), whose sum is σ = 71025496200. Its totient is φ = 70236323664.

The previous prime is 70630909913. The next prime is 70630909949. The reversal of 70630909931 is 13990903607.

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

It is an interprime number because it is at equal distance from previous prime (70630909913) and next prime (70630909949).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70630909931 is a prime.

It is a super-2 number, since 2×70630909931² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70630909991) 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, 197292866 + ... + 197293223.

It is an arithmetic number, because the mean of its divisors is an integer number (17756374050).

Almost surely, 2^70630909931 is an apocalyptic number.

70630909931 is a deficient number, since it is larger than the sum of its proper divisors (394586269).

70630909931 is a wasteful number, since it uses less digits than its factorization.

70630909931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394586268.

The product of its (nonzero) digits is 275562, while the sum is 47.

The spelling of 70630909931 in words is "seventy billion, six hundred thirty million, nine hundred nine thousand, nine hundred thirty-one".