83209840057 has 8 divisors (see below), whose sum is σ = 84199191552. Its totient is φ = 82225710000.

The previous prime is 83209840033. The next prime is 83209840061. The reversal of 83209840057 is 75004890238.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83209840057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83209839989 and 83209840016.

It is not an unprimeable number, because it can be changed into a prime (83209840027) 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, 1273294 + ... + 1337047.

It is an arithmetic number, because the mean of its divisors is an integer number (10524898944).

Almost surely, 2^83209840057 is an apocalyptic number.

It is an amenable number.

83209840057 is a deficient number, since it is larger than the sum of its proper divisors (989351495).

83209840057 is a wasteful number, since it uses less digits than its factorization.

83209840057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2610719.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 83209840057 in words is "eighty-three billion, two hundred nine million, eight hundred forty thousand, fifty-seven".