70921565071 has 12 divisors (see below), whose sum is σ = 82792133832. Its totient is φ = 60575095728.

The previous prime is 70921565041. The next prime is 70921565159. The reversal of 70921565071 is 17056512907.

It is not a de Polignac number, because 70921565071 - 2²⁷ = 70787347343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70921565041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2543340 + ... + 2571073.

It is an arithmetic number, because the mean of its divisors is an integer number (6899344486).

Almost surely, 2^70921565071 is an apocalyptic number.

70921565071 is a deficient number, since it is larger than the sum of its proper divisors (11870568761).

70921565071 is a wasteful number, since it uses less digits than its factorization.

70921565071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5114710 (or 5114703 counting only the distinct ones).

The product of its (nonzero) digits is 132300, while the sum is 43.

The spelling of 70921565071 in words is "seventy billion, nine hundred twenty-one million, five hundred sixty-five thousand, seventy-one".