63888968401 has 16 divisors (see below), whose sum is σ = 65208729600. Its totient is φ = 62583066000.

The previous prime is 63888968399. The next prime is 63888968411. The reversal of 63888968401 is 10486988836.

It is a cyclic number.

It is not a de Polignac number, because 63888968401 - 2¹ = 63888968399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63888968401.

It is not an unprimeable number, because it can be changed into a prime (63888968411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10864380 + ... + 10870258.

It is an arithmetic number, because the mean of its divisors is an integer number (4075545600).

Almost surely, 2^63888968401 is an apocalyptic number.

It is an amenable number.

63888968401 is a deficient number, since it is larger than the sum of its proper divisors (1319761199).

63888968401 is a wasteful number, since it uses less digits than its factorization.

63888968401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7020.

The product of its (nonzero) digits is 15925248, while the sum is 61.

The spelling of 63888968401 in words is "sixty-three billion, eight hundred eighty-eight million, nine hundred sixty-eight thousand, four hundred one".