13978627630 has 64 divisors (see below), whose sum is σ = 28021795776. Its totient is φ = 4977792000.

The previous prime is 13978627627. The next prime is 13978627651. The reversal of 13978627630 is 3672687931.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1558960 + ... + 1567900.

It is an arithmetic number, because the mean of its divisors is an integer number (437840559).

Almost surely, 2^13978627630 is an apocalyptic number.

13978627630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13978627630 is an abundant number, since it is smaller than the sum of its proper divisors (14043168146).

13978627630 is a wasteful number, since it uses less digits than its factorization.

13978627630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9253.

The product of its (nonzero) digits is 2286144, while the sum is 52.

The spelling of 13978627630 in words is "thirteen billion, nine hundred seventy-eight million, six hundred twenty-seven thousand, six hundred thirty".