69957071964 has 144 divisors (see below), whose sum is σ = 200775163680. Its totient is φ = 20360471040.

The previous prime is 69957071941. The next prime is 69957071969. The reversal of 69957071964 is 46917075996.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69957071969) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6014074 + ... + 6025694.

It is an arithmetic number, because the mean of its divisors is an integer number (1394271970).

Almost surely, 2^69957071964 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69957071964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100387581840).

69957071964 is an abundant number, since it is smaller than the sum of its proper divisors (130818091716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69957071964 is a wasteful number, since it uses less digits than its factorization.

69957071964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12340 (or 12335 counting only the distinct ones).

The product of its (nonzero) digits is 25719120, while the sum is 63.

The spelling of 69957071964 in words is "sixty-nine billion, nine hundred fifty-seven million, seventy-one thousand, nine hundred sixty-four".