82074573211957 has 4 divisors (see below), whose sum is σ = 82075050342720. Its totient is φ = 82074096081196.

The previous prime is 82074573211931. The next prime is 82074573211973. The reversal of 82074573211957 is 75911237547028.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82074573211957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82074573211895 and 82074573211904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82074573011957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238307263 + ... + 238651420.

It is an arithmetic number, because the mean of its divisors is an integer number (20518762585680).

Almost surely, 2^{82074573211957} is an apocalyptic number.

It is an amenable number.

82074573211957 is a deficient number, since it is larger than the sum of its proper divisors (477130763).

82074573211957 is a wasteful number, since it uses less digits than its factorization.

82074573211957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477130762.

The product of its (nonzero) digits is 29635200, while the sum is 61.

The spelling of 82074573211957 in words is "eighty-two trillion, seventy-four billion, five hundred seventy-three million, two hundred eleven thousand, nine hundred fifty-seven".