71392978930 has 96 divisors (see below), whose sum is σ = 161832867840. Its totient is φ = 22476021120.

The previous prime is 71392978919. The next prime is 71392978931. The reversal of 71392978930 is 3987929317.

It is not an unprimeable number, because it can be changed into a prime (71392978931) 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, 1187331 + ... + 1246009.

It is an arithmetic number, because the mean of its divisors is an integer number (1685759040).

Almost surely, 2^71392978930 is an apocalyptic number.

71392978930 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

71392978930 is an abundant number, since it is smaller than the sum of its proper divisors (90439888910).

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

71392978930 is a wasteful number, since it uses less digits than its factorization.

71392978930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58904 (or 58897 counting only the distinct ones).

The product of its (nonzero) digits is 5143824, while the sum is 58.

The spelling of 71392978930 in words is "seventy-one billion, three hundred ninety-two million, nine hundred seventy-eight thousand, nine hundred thirty".