13778947360311 has 16 divisors (see below), whose sum is σ = 20996746308864. Its totient is φ = 7873588545984.

The previous prime is 13778947360309. The next prime is 13778947360319. The reversal of 13778947360311 is 11306374987731.

It is not a de Polignac number, because 13778947360311 - 2¹ = 13778947360309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13778947360319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2197525 + ... + 5690958.

It is an arithmetic number, because the mean of its divisors is an integer number (1312296644304).

Almost surely, 2^{13778947360311} is an apocalyptic number.

13778947360311 is a deficient number, since it is larger than the sum of its proper divisors (7217798948553).

13778947360311 is an equidigital number, since it uses as much as digits as its factorization.

13778947360311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7971670.

The product of its (nonzero) digits is 16003008, while the sum is 60.

The spelling of 13778947360311 in words is "thirteen trillion, seven hundred seventy-eight billion, nine hundred forty-seven million, three hundred sixty thousand, three hundred eleven".