70391944971 has 64 divisors (see below), whose sum is σ = 112319001600. Its totient is φ = 43436736000.

The previous prime is 70391944969. The next prime is 70391945023. The reversal of 70391944971 is 17944919307.

It is not a de Polignac number, because 70391944971 - 2¹ = 70391944969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70391944901) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4717795 + ... + 4732691.

It is an arithmetic number, because the mean of its divisors is an integer number (1754984400).

Almost surely, 2^70391944971 is an apocalyptic number.

70391944971 is a deficient number, since it is larger than the sum of its proper divisors (41927056629).

70391944971 is a wasteful number, since it uses less digits than its factorization.

70391944971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15137 (or 15131 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 54.

The spelling of 70391944971 in words is "seventy billion, three hundred ninety-one million, nine hundred forty-four thousand, nine hundred seventy-one".