63808618511059 has 4 divisors (see below), whose sum is σ = 63826607975704. Its totient is φ = 63790629046416.

The previous prime is 63808618511047. The next prime is 63808618511063. The reversal of 63808618511059 is 95011581680836.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63808618511059 - 2³⁵ = 63774258772691 is a prime.

It is a super-2 number, since 2×63808618511059² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63808618510988 and 63808618511006.

It is not an unprimeable number, because it can be changed into a prime (63808618521059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8994727002 + ... + 8994734095.

It is an arithmetic number, because the mean of its divisors is an integer number (15956651993926).

Almost surely, 2^{63808618511059} is an apocalyptic number.

63808618511059 is a deficient number, since it is larger than the sum of its proper divisors (17989464645).

63808618511059 is a wasteful number, since it uses less digits than its factorization.

63808618511059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17989464644.

The product of its (nonzero) digits is 12441600, while the sum is 61.

The spelling of 63808618511059 in words is "sixty-three trillion, eight hundred eight billion, six hundred eighteen million, five hundred eleven thousand, fifty-nine".