63858713896801 has 2 divisors, whose sum is σ = 63858713896802. Its totient is φ = 63858713896800.

The previous prime is 63858713896793. The next prime is 63858713896843. The reversal of 63858713896801 is 10869831785836.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61372746773776 + 2485967123025 = 7834076^2 + 1576695^2 .

It is a cyclic number.

It is not a de Polignac number, because 63858713896801 - 2³ = 63858713896793 is a prime.

It is not a weakly prime, because it can be changed into another prime (63858713896891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31929356948400 + 31929356948401.

It is an arithmetic number, because the mean of its divisors is an integer number (31929356948401).

Almost surely, 2^{63858713896801} is an apocalyptic number.

It is an amenable number.

63858713896801 is a deficient number, since it is larger than the sum of its proper divisors (1).

63858713896801 is an equidigital number, since it uses as much as digits as its factorization.

63858713896801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 418037760, while the sum is 73.

The spelling of 63858713896801 in words is "sixty-three trillion, eight hundred fifty-eight billion, seven hundred thirteen million, eight hundred ninety-six thousand, eight hundred one".