82501607477 has 2 divisors, whose sum is σ = 82501607478. Its totient is φ = 82501607476.

The previous prime is 82501607423. The next prime is 82501607483. The reversal of 82501607477 is 77470610528.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70283842321 + 12217765156 = 265111^2 + 110534^2 .

It is a cyclic number.

It is not a de Polignac number, because 82501607477 - 2³² = 78206640181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82501603477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41250803738 + 41250803739.

It is an arithmetic number, because the mean of its divisors is an integer number (41250803739).

Almost surely, 2^82501607477 is an apocalyptic number.

It is an amenable number.

82501607477 is a deficient number, since it is larger than the sum of its proper divisors (1).

82501607477 is an equidigital number, since it uses as much as digits as its factorization.

82501607477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 658560, while the sum is 47.

It can be divided in two parts, 82 and 501607477, that multiplied together give a palindrome (41131813114).

The spelling of 82501607477 in words is "eighty-two billion, five hundred one million, six hundred seven thousand, four hundred seventy-seven".