84902087957 has 2 divisors, whose sum is σ = 84902087958. Its totient is φ = 84902087956.

The previous prime is 84902087947. The next prime is 84902087969. The reversal of 84902087957 is 75978020948.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80618516356 + 4283571601 = 283934^2 + 65449^2 .

It is a cyclic number.

It is not a de Polignac number, because 84902087957 - 2²⁰ = 84901039381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84902087896 and 84902087905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84902087947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42451043978 + 42451043979.

It is an arithmetic number, because the mean of its divisors is an integer number (42451043979).

Almost surely, 2^84902087957 is an apocalyptic number.

It is an amenable number.

84902087957 is a deficient number, since it is larger than the sum of its proper divisors (1).

84902087957 is an equidigital number, since it uses as much as digits as its factorization.

84902087957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10160640, while the sum is 59.

The spelling of 84902087957 in words is "eighty-four billion, nine hundred two million, eighty-seven thousand, nine hundred fifty-seven".