82940019057 has 12 divisors (see below), whose sum is σ = 136916856960. Its totient is φ = 47394296568.

The previous prime is 82940019047. The next prime is 82940019091. The reversal of 82940019057 is 75091004928.

82940019057 is a `hidden beast` number, since 8 + 2 + 9 + 400 + 190 + 57 = 666.

It is not a de Polignac number, because 82940019057 - 2⁷ = 82940018929 is a prime.

It is a super-2 number, since 2×82940019057² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82940019017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 658254057 + ... + 658254182.

It is an arithmetic number, because the mean of its divisors is an integer number (11409738080).

Almost surely, 2^82940019057 is an apocalyptic number.

It is an amenable number.

82940019057 is a deficient number, since it is larger than the sum of its proper divisors (53976837903).

82940019057 is a wasteful number, since it uses less digits than its factorization.

82940019057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316508252 (or 1316508249 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The spelling of 82940019057 in words is "eighty-two billion, nine hundred forty million, nineteen thousand, fifty-seven".