82574458836 has 96 divisors (see below), whose sum is σ = 210036169728. Its totient is φ = 25147584000.

The previous prime is 82574458829. The next prime is 82574458859. The reversal of 82574458836 is 63885447528.

It is a self number, because there is not a number n which added to its sum of digits gives 82574458836.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1400961 + ... + 1458711.

It is an arithmetic number, because the mean of its divisors is an integer number (2187876768).

Almost surely, 2^82574458836 is an apocalyptic number.

82574458836 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82574458836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105018084864).

82574458836 is an abundant number, since it is smaller than the sum of its proper divisors (127461710892).

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

82574458836 is a wasteful number, since it uses less digits than its factorization.

82574458836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57981 (or 57979 counting only the distinct ones).

The product of its digits is 51609600, while the sum is 60.

The spelling of 82574458836 in words is "eighty-two billion, five hundred seventy-four million, four hundred fifty-eight thousand, eight hundred thirty-six".