82633703557 has 2 divisors, whose sum is σ = 82633703558. Its totient is φ = 82633703556.

The previous prime is 82633703549. The next prime is 82633703561. The reversal of 82633703557 is 75530733628.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62739729441 + 19893974116 = 250479^2 + 141046^2 .

It is a cyclic number.

It is not a de Polignac number, because 82633703557 - 2³ = 82633703549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82633703557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82633703507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41316851778 + 41316851779.

It is an arithmetic number, because the mean of its divisors is an integer number (41316851779).

Almost surely, 2^82633703557 is an apocalyptic number.

It is an amenable number.

82633703557 is a deficient number, since it is larger than the sum of its proper divisors (1).

82633703557 is an equidigital number, since it uses as much as digits as its factorization.

82633703557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3175200, while the sum is 49.

The spelling of 82633703557 in words is "eighty-two billion, six hundred thirty-three million, seven hundred three thousand, five hundred fifty-seven".