82502757761 has 2 divisors, whose sum is σ = 82502757762. Its totient is φ = 82502757760.

The previous prime is 82502757739. The next prime is 82502757803. The reversal of 82502757761 is 16775720528.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81990595600 + 512162161 = 286340^2 + 22631^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82502757761 is a prime.

It is not a weakly prime, because it can be changed into another prime (82502750761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41251378880 + 41251378881.

It is an arithmetic number, because the mean of its divisors is an integer number (41251378881).

Almost surely, 2^82502757761 is an apocalyptic number.

It is an amenable number.

82502757761 is a deficient number, since it is larger than the sum of its proper divisors (1).

82502757761 is an equidigital number, since it uses as much as digits as its factorization.

82502757761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1646400, while the sum is 50.

The spelling of 82502757761 in words is "eighty-two billion, five hundred two million, seven hundred fifty-seven thousand, seven hundred sixty-one".