13775278790 has 32 divisors (see below), whose sum is σ = 30517542720. Its totient is φ = 4359648384.

The previous prime is 13775278771. The next prime is 13775278801. The reversal of 13775278790 is 9787257731.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 7567925 + ... + 7569744.

It is an arithmetic number, because the mean of its divisors is an integer number (953673210).

Almost surely, 2^13775278790 is an apocalyptic number.

13775278790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13775278790 is an abundant number, since it is smaller than the sum of its proper divisors (16742263930).

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

13775278790 is a wasteful number, since it uses less digits than its factorization.

13775278790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15137696.

The product of its (nonzero) digits is 5186160, while the sum is 56.

The spelling of 13775278790 in words is "thirteen billion, seven hundred seventy-five million, two hundred seventy-eight thousand, seven hundred ninety".