82869136993 has 2 divisors, whose sum is σ = 82869136994. Its totient is φ = 82869136992.

The previous prime is 82869136859. The next prime is 82869137017. The reversal of 82869136993 is 39963196828.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77066201664 + 5802935329 = 277608^2 + 76177^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82869136993 is a prime.

It is not a weakly prime, because it can be changed into another prime (82869136793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41434568496 + 41434568497.

It is an arithmetic number, because the mean of its divisors is an integer number (41434568497).

Almost surely, 2^82869136993 is an apocalyptic number.

It is an amenable number.

82869136993 is a deficient number, since it is larger than the sum of its proper divisors (1).

82869136993 is an equidigital number, since it uses as much as digits as its factorization.

82869136993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30233088, while the sum is 64.

The spelling of 82869136993 in words is "eighty-two billion, eight hundred sixty-nine million, one hundred thirty-six thousand, nine hundred ninety-three".