368416953521 has 2 divisors, whose sum is σ = 368416953522. Its totient is φ = 368416953520.

The previous prime is 368416953511. The next prime is 368416953577. The reversal of 368416953521 is 125359614863.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 360106807921 + 8310145600 = 600089^2 + 91160^2 .

It is a cyclic number.

It is not a de Polignac number, because 368416953521 - 2²² = 368412759217 is a prime.

It is not a weakly prime, because it can be changed into another prime (368416953511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 184208476760 + 184208476761.

It is an arithmetic number, because the mean of its divisors is an integer number (184208476761).

Almost surely, 2^368416953521 is an apocalyptic number.

It is an amenable number.

368416953521 is a deficient number, since it is larger than the sum of its proper divisors (1).

368416953521 is an equidigital number, since it uses as much as digits as its factorization.

368416953521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4665600, while the sum is 53.

The spelling of 368416953521 in words is "three hundred sixty-eight billion, four hundred sixteen million, nine hundred fifty-three thousand, five hundred twenty-one".