86602970557 has 2 divisors, whose sum is σ = 86602970558. Its totient is φ = 86602970556.

The previous prime is 86602970551. The next prime is 86602970561. The reversal of 86602970557 is 75507920668.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71487251641 + 15115718916 = 267371^2 + 122946^2 .

It is a cyclic number.

It is not a de Polignac number, because 86602970557 - 2³ = 86602970549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86602970498 and 86602970507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86602970551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43301485278 + 43301485279.

It is an arithmetic number, because the mean of its divisors is an integer number (43301485279).

Almost surely, 2^86602970557 is an apocalyptic number.

It is an amenable number.

86602970557 is a deficient number, since it is larger than the sum of its proper divisors (1).

86602970557 is an equidigital number, since it uses as much as digits as its factorization.

86602970557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6350400, while the sum is 55.

The spelling of 86602970557 in words is "eighty-six billion, six hundred two million, nine hundred seventy thousand, five hundred fifty-seven".