13801778814 has 32 divisors (see below), whose sum is σ = 29365860096. Its totient is φ = 4309441920.

The previous prime is 13801778779. The next prime is 13801778839. The reversal of 13801778814 is 41887710831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299122 + ... + 342165.

It is an arithmetic number, because the mean of its divisors is an integer number (917683128).

Almost surely, 2^13801778814 is an apocalyptic number.

13801778814 is an abundant number, since it is smaller than the sum of its proper divisors (15564081282).

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

13801778814 is a wasteful number, since it uses less digits than its factorization.

13801778814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641520.

The product of its (nonzero) digits is 301056, while the sum is 48.

The spelling of 13801778814 in words is "thirteen billion, eight hundred one million, seven hundred seventy-eight thousand, eight hundred fourteen".