82391126407656 has 32 divisors (see below), whose sum is σ = 224703072021600. Its totient is φ = 24967008002240.

The previous prime is 82391126407649. The next prime is 82391126407657. The reversal of 82391126407656 is 65670462119328.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 82391126407656.

It is not an unprimeable number, because it can be changed into a prime (82391126407657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156043799751 + ... + 156043800278.

It is an arithmetic number, because the mean of its divisors is an integer number (7021971000675).

It is a 1-persistent number, because it is pandigital, but 2⋅82391126407656 = 164782252815312 is not.

Almost surely, 2^{82391126407656} is an apocalyptic number.

It is an amenable number.

82391126407656 is an abundant number, since it is smaller than the sum of its proper divisors (142311945613944).

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

82391126407656 is a wasteful number, since it uses less digits than its factorization.

82391126407656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312087600049 (or 312087600045 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 60.

The spelling of 82391126407656 in words is "eighty-two trillion, three hundred ninety-one billion, one hundred twenty-six million, four hundred seven thousand, six hundred fifty-six".