13630505838 has 16 divisors (see below), whose sum is σ = 27264098640. Its totient is φ = 4542987456.

The previous prime is 13630505821. The next prime is 13630505899. The reversal of 13630505838 is 83850503631.

13630505838 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13630505838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69103 + ... + 178986.

It is an arithmetic number, because the mean of its divisors is an integer number (1704006165).

Almost surely, 2^13630505838 is an apocalyptic number.

13630505838 is an abundant number, since it is smaller than the sum of its proper divisors (13633592802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13630505838 is a wasteful number, since it uses less digits than its factorization.

13630505838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257251.

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 13630505838 in words is "thirteen billion, six hundred thirty million, five hundred five thousand, eight hundred thirty-eight".