13978738710 has 48 divisors (see below), whose sum is σ = 38257605360. Its totient is φ = 3531470400.

The previous prime is 13978738687. The next prime is 13978738751. The reversal of 13978738710 is 1783787931.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4085641 + ... + 4089060.

It is an arithmetic number, because the mean of its divisors is an integer number (797033445).

Almost surely, 2^13978738710 is an apocalyptic number.

13978738710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13978738710 is an abundant number, since it is smaller than the sum of its proper divisors (24278866650).

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

13978738710 is a wasteful number, since it uses less digits than its factorization.

13978738710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8174733 (or 8174730 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 54.

The spelling of 13978738710 in words is "thirteen billion, nine hundred seventy-eight million, seven hundred thirty-eight thousand, seven hundred ten".