13779036780 has 48 divisors (see below), whose sum is σ = 38593013760. Its totient is φ = 3673294528.

The previous prime is 13779036769. The next prime is 13779036833. The reversal of 13779036780 is 8763097731.

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, 174901 + ... + 241139.

It is an arithmetic number, because the mean of its divisors is an integer number (804021120).

Almost surely, 2^13779036780 is an apocalyptic number.

13779036780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13779036780 is an abundant number, since it is smaller than the sum of its proper divisors (24813976980).

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

13779036780 is a wasteful number, since it uses less digits than its factorization.

13779036780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69718 (or 69716 counting only the distinct ones).

The product of its (nonzero) digits is 1333584, while the sum is 51.

The spelling of 13779036780 in words is "thirteen billion, seven hundred seventy-nine million, thirty-six thousand, seven hundred eighty".