82393831357 has 2 divisors, whose sum is σ = 82393831358. Its totient is φ = 82393831356.

The previous prime is 82393831321. The next prime is 82393831381. The reversal of 82393831357 is 75313839328.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67344921081 + 15048910276 = 259509^2 + 122674^2 .

It is a cyclic number.

It is not a de Polignac number, because 82393831357 - 2¹⁵ = 82393798589 is a prime.

It is a super-2 number, since 2×82393831357² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82393831307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41196915678 + 41196915679.

It is an arithmetic number, because the mean of its divisors is an integer number (41196915679).

Almost surely, 2^82393831357 is an apocalyptic number.

It is an amenable number.

82393831357 is a deficient number, since it is larger than the sum of its proper divisors (1).

82393831357 is an equidigital number, since it uses as much as digits as its factorization.

82393831357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3265920, while the sum is 52.

The spelling of 82393831357 in words is "eighty-two billion, three hundred ninety-three million, eight hundred thirty-one thousand, three hundred fifty-seven".