18860964253 has 2 divisors, whose sum is σ = 18860964254. Its totient is φ = 18860964252.

The previous prime is 18860964173. The next prime is 18860964271. The reversal of 18860964253 is 35246906881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10943879769 + 7917084484 = 104613^2 + 88978^2 .

It is a cyclic number.

It is not a de Polignac number, because 18860964253 - 2²¹ = 18858867101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18860964253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18860964953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9430482126 + 9430482127.

It is an arithmetic number, because the mean of its divisors is an integer number (9430482127).

Almost surely, 2^18860964253 is an apocalyptic number.

It is an amenable number.

18860964253 is a deficient number, since it is larger than the sum of its proper divisors (1).

18860964253 is an equidigital number, since it uses as much as digits as its factorization.

18860964253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2488320, while the sum is 52.

The spelling of 18860964253 in words is "eighteen billion, eight hundred sixty million, nine hundred sixty-four thousand, two hundred fifty-three".