13751388761 has 6 divisors (see below), whose sum is σ = 15115162986. Its totient is φ = 12501262400.

The previous prime is 13751388743. The next prime is 13751388773. The reversal of 13751388761 is 16788315731.

13751388761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8487015625 + 5264373136 = 92125^2 + 72556^2 .

It is not a de Polignac number, because 13751388761 - 2⁶ = 13751388697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13751388731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56823800 + ... + 56824041.

It is an arithmetic number, because the mean of its divisors is an integer number (2519193831).

Almost surely, 2^13751388761 is an apocalyptic number.

13751388761 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13751388761 is a deficient number, since it is larger than the sum of its proper divisors (1363774225).

13751388761 is a wasteful number, since it uses less digits than its factorization.

13751388761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113647863 (or 113647852 counting only the distinct ones).

The product of its digits is 846720, while the sum is 50.

The spelling of 13751388761 in words is "thirteen billion, seven hundred fifty-one million, three hundred eighty-eight thousand, seven hundred sixty-one".