863914901513 has 2 divisors, whose sum is σ = 863914901514. Its totient is φ = 863914901512.

The previous prime is 863914901501. The next prime is 863914901543. The reversal of 863914901513 is 315109419368.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 434192698489 + 429722203024 = 658933^2 + 655532^2 .

It is a cyclic number.

It is not a de Polignac number, because 863914901513 - 2⁸ = 863914901257 is a prime.

It is not a weakly prime, because it can be changed into another prime (863914901543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431957450756 + 431957450757.

It is an arithmetic number, because the mean of its divisors is an integer number (431957450757).

Almost surely, 2^863914901513 is an apocalyptic number.

It is an amenable number.

863914901513 is a deficient number, since it is larger than the sum of its proper divisors (1).

863914901513 is an equidigital number, since it uses as much as digits as its factorization.

863914901513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 699840, while the sum is 50.

The spelling of 863914901513 in words is "eight hundred sixty-three billion, nine hundred fourteen million, nine hundred one thousand, five hundred thirteen".