70972167873 has 4 divisors (see below), whose sum is σ = 94629557168. Its totient is φ = 47314778580.

The previous prime is 70972167751. The next prime is 70972167887. The reversal of 70972167873 is 37876127907.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 70972167873 - 2¹⁸ = 70971905729 is a prime.

It is a super-2 number, since 2×70972167873² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70972167473) 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, 11828694643 + ... + 11828694648.

It is an arithmetic number, because the mean of its divisors is an integer number (23657389292).

Almost surely, 2^70972167873 is an apocalyptic number.

It is an amenable number.

70972167873 is a deficient number, since it is larger than the sum of its proper divisors (23657389295).

70972167873 is a wasteful number, since it uses less digits than its factorization.

70972167873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23657389294.

The product of its (nonzero) digits is 6223392, while the sum is 57.

The spelling of 70972167873 in words is "seventy billion, nine hundred seventy-two million, one hundred sixty-seven thousand, eight hundred seventy-three".