82700251242 has 64 divisors (see below), whose sum is σ = 191797201920. Its totient is φ = 23283241344.

The previous prime is 82700251187. The next prime is 82700251261. The reversal of 82700251242 is 24215200728.

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, 3431109 + ... + 3455127.

It is an arithmetic number, because the mean of its divisors is an integer number (2996831280).

Almost surely, 2^82700251242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82700251242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95898600960).

82700251242 is an abundant number, since it is smaller than the sum of its proper divisors (109096950678).

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

82700251242 is a wasteful number, since it uses less digits than its factorization.

82700251242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25227.

The product of its (nonzero) digits is 17920, while the sum is 33.

The spelling of 82700251242 in words is "eighty-two billion, seven hundred million, two hundred fifty-one thousand, two hundred forty-two".