82739971842 has 32 divisors (see below), whose sum is σ = 182310951744. Its totient is φ = 24824472000.

The previous prime is 82739971837. The next prime is 82739971843. The reversal of 82739971842 is 24817993728.

It is not an unprimeable number, because it can be changed into a prime (82739971843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6199453 + ... + 6212784.

It is an arithmetic number, because the mean of its divisors is an integer number (5697217242).

Almost surely, 2^82739971842 is an apocalyptic number.

82739971842 is an abundant number, since it is smaller than the sum of its proper divisors (99570979902).

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

82739971842 is a wasteful number, since it uses less digits than its factorization.

82739971842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12412354.

The product of its digits is 12192768, while the sum is 60.

The spelling of 82739971842 in words is "eighty-two billion, seven hundred thirty-nine million, nine hundred seventy-one thousand, eight hundred forty-two".