71912931048 has 384 divisors, whose sum is σ = 240929095680. Its totient is φ = 18932474880.

The previous prime is 71912930981. The next prime is 71912931053. The reversal of 71912931048 is 84013921917.

It is a junction number, because it is equal to n+sod(n) for n = 71912930994 and 71912931012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 39446665 + ... + 39448487.

It is an arithmetic number, because the mean of its divisors is an integer number (627419520).

Almost surely, 2^71912931048 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 71912931048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120464547840).

71912931048 is an abundant number, since it is smaller than the sum of its proper divisors (169016164632).

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

71912931048 is a wasteful number, since it uses less digits than its factorization.

71912931048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989 (or 1982 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The spelling of 71912931048 in words is "seventy-one billion, nine hundred twelve million, nine hundred thirty-one thousand, forty-eight".