13877627761 has 8 divisors (see below), whose sum is σ = 13984918344. Its totient is φ = 13770424320.

The previous prime is 13877627717. The next prime is 13877627809. The reversal of 13877627761 is 16772677831.

It can be written as a sum of positive squares in 4 ways, for example, as 7193584225 + 6684043536 = 84815^2 + 81756^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13877627761 - 2⁹ = 13877627249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13877627861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318321 + ... + 359281.

It is an arithmetic number, because the mean of its divisors is an integer number (1748114793).

Almost surely, 2^13877627761 is an apocalyptic number.

It is an amenable number.

13877627761 is a deficient number, since it is larger than the sum of its proper divisors (107290583).

13877627761 is a wasteful number, since it uses less digits than its factorization.

13877627761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43571.

The product of its digits is 4148928, while the sum is 55.

The spelling of 13877627761 in words is "thirteen billion, eight hundred seventy-seven million, six hundred twenty-seven thousand, seven hundred sixty-one".