71973690350 has 24 divisors (see below), whose sum is σ = 135375241680. Its totient is φ = 28465997120.

The previous prime is 71973690323. The next prime is 71973690391. The reversal of 71973690350 is 5309637917.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8082482 + ... + 8091381.

It is an arithmetic number, because the mean of its divisors is an integer number (5640635070).

Almost surely, 2^71973690350 is an apocalyptic number.

71973690350 is a deficient number, since it is larger than the sum of its proper divisors (63401551330).

71973690350 is a wasteful number, since it uses less digits than its factorization.

71973690350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16173964 (or 16173959 counting only the distinct ones).

The product of its (nonzero) digits is 1071630, while the sum is 50.

The spelling of 71973690350 in words is "seventy-one billion, nine hundred seventy-three million, six hundred ninety thousand, three hundred fifty".