82738391292 has 72 divisors (see below), whose sum is σ = 210974400000. Its totient is φ = 27338508288.

The previous prime is 82738391291. The next prime is 82738391299. The reversal of 82738391292 is 29219383728.

82738391292 is a `hidden beast` number, since 8 + 273 + 83 + 9 + 1 + 292 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82738391291) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5703184 + ... + 5717672.

It is an arithmetic number, because the mean of its divisors is an integer number (2930200000).

Almost surely, 2^82738391292 is an apocalyptic number.

It is an amenable number.

82738391292 is an abundant number, since it is smaller than the sum of its proper divisors (128236008708).

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

82738391292 is a wasteful number, since it uses less digits than its factorization.

82738391292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15875 (or 15870 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The spelling of 82738391292 in words is "eighty-two billion, seven hundred thirty-eight million, three hundred ninety-one thousand, two hundred ninety-two".