82699694491 has 2 divisors, whose sum is σ = 82699694492. Its totient is φ = 82699694490.

The previous prime is 82699694477. The next prime is 82699694663. The reversal of 82699694491 is 19449699628.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82699694491 - 2²⁹ = 82162823579 is a prime.

It is not a weakly prime, because it can be changed into another prime (82699697491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41349847245 + 41349847246.

It is an arithmetic number, because the mean of its divisors is an integer number (41349847246).

Almost surely, 2^82699694491 is an apocalyptic number.

82699694491 is a deficient number, since it is larger than the sum of its proper divisors (1).

82699694491 is an equidigital number, since it uses as much as digits as its factorization.

82699694491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60466176, while the sum is 67.

The spelling of 82699694491 in words is "eighty-two billion, six hundred ninety-nine million, six hundred ninety-four thousand, four hundred ninety-one".