82497593491 has 2 divisors, whose sum is σ = 82497593492. Its totient is φ = 82497593490.

The previous prime is 82497593467. The next prime is 82497593531. The reversal of 82497593491 is 19439579428.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82497593491 - 2⁷ = 82497593363 is a prime.

It is not a weakly prime, because it can be changed into another prime (82497593291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41248796745 + 41248796746.

It is an arithmetic number, because the mean of its divisors is an integer number (41248796746).

Almost surely, 2^82497593491 is an apocalyptic number.

82497593491 is a deficient number, since it is larger than the sum of its proper divisors (1).

82497593491 is an equidigital number, since it uses as much as digits as its factorization.

82497593491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19595520, while the sum is 61.

The spelling of 82497593491 in words is "eighty-two billion, four hundred ninety-seven million, five hundred ninety-three thousand, four hundred ninety-one".