13801017761 has 4 divisors (see below), whose sum is σ = 13802154900. Its totient is φ = 13799880624.

The previous prime is 13801017721. The next prime is 13801017781. The reversal of 13801017761 is 16771010831.

13801017761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9359595025 + 4441422736 = 96745^2 + 66644^2 .

It is a cyclic number.

It is not a de Polignac number, because 13801017761 - 2¹⁴ = 13801001377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13801017721) 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 3 ways as a sum of consecutive naturals, for example, 550166 + ... + 574703.

It is an arithmetic number, because the mean of its divisors is an integer number (3450538725).

Almost surely, 2^13801017761 is an apocalyptic number.

It is an amenable number.

13801017761 is a deficient number, since it is larger than the sum of its proper divisors (1137139).

13801017761 is a wasteful number, since it uses less digits than its factorization.

13801017761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137138.

The product of its (nonzero) digits is 7056, while the sum is 35.

The spelling of 13801017761 in words is "thirteen billion, eight hundred one million, seventeen thousand, seven hundred sixty-one".