82378842957 has 12 divisors (see below), whose sum is σ = 119240085120. Its totient is φ = 54804571848.

The previous prime is 82378842943. The next prime is 82378842967. The reversal of 82378842957 is 75924887328.

82378842957 is a `hidden beast` number, since 82 + 3 + 7 + 88 + 429 + 57 = 666.

It is not a de Polignac number, because 82378842957 - 2⁴ = 82378842941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82378842894 and 82378842903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82378842967) 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, 9550183 + ... + 9558804.

It is an arithmetic number, because the mean of its divisors is an integer number (9936673760).

Almost surely, 2^82378842957 is an apocalyptic number.

It is an amenable number.

82378842957 is a deficient number, since it is larger than the sum of its proper divisors (36861242163).

82378842957 is a wasteful number, since it uses less digits than its factorization.

82378842957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19109472 (or 19109469 counting only the distinct ones).

The product of its digits is 54190080, while the sum is 63.

The spelling of 82378842957 in words is "eighty-two billion, three hundred seventy-eight million, eight hundred forty-two thousand, nine hundred fifty-seven".