71951932930 has 64 divisors (see below), whose sum is σ = 138141158400. Its totient is φ = 26920041984.

The previous prime is 71951932873. The next prime is 71951932937. The reversal of 71951932930 is 3923915917.

It is not an unprimeable number, because it can be changed into a prime (71951932937) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16742542 + ... + 16746838.

It is an arithmetic number, because the mean of its divisors is an integer number (2158455600).

Almost surely, 2^71951932930 is an apocalyptic number.

71951932930 is a deficient number, since it is larger than the sum of its proper divisors (66189225470).

71951932930 is a wasteful number, since it uses less digits than its factorization.

71951932930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5923.

The product of its (nonzero) digits is 459270, while the sum is 49.

The spelling of 71951932930 in words is "seventy-one billion, nine hundred fifty-one million, nine hundred thirty-two thousand, nine hundred thirty".