82791405750 has 32 divisors (see below), whose sum is σ = 206647350624. Its totient is φ = 22077708000.

The previous prime is 82791405731. The next prime is 82791405787. The reversal of 82791405750 is 5750419728.

It is a super-2 number, since 2×82791405750² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 82791405750.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55193521 + ... + 55195020.

It is an arithmetic number, because the mean of its divisors is an integer number (6457729707).

Almost surely, 2^82791405750 is an apocalyptic number.

82791405750 is an abundant number, since it is smaller than the sum of its proper divisors (123855944874).

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

82791405750 is a wasteful number, since it uses less digits than its factorization.

82791405750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110388561 (or 110388551 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 48.

The spelling of 82791405750 in words is "eighty-two billion, seven hundred ninety-one million, four hundred five thousand, seven hundred fifty".