82940412840 has 32 divisors (see below), whose sum is σ = 248821238880. Its totient is φ = 22117443392.

The previous prime is 82940412811. The next prime is 82940412857. The reversal of 82940412840 is 4821404928.

It is a super-2 number, since 2×82940412840² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 82940412792 and 82940412801.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345584934 + ... + 345585173.

It is an arithmetic number, because the mean of its divisors is an integer number (7775663715).

Almost surely, 2^82940412840 is an apocalyptic number.

It is an amenable number.

82940412840 is an abundant number, since it is smaller than the sum of its proper divisors (165880826040).

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

82940412840 is a wasteful number, since it uses less digits than its factorization.

82940412840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691170121 (or 691170117 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The spelling of 82940412840 in words is "eighty-two billion, nine hundred forty million, four hundred twelve thousand, eight hundred forty".