13677520477 has 4 divisors (see below), whose sum is σ = 13734273916. Its totient is φ = 13620767040.

The previous prime is 13677520471. The next prime is 13677520487. The reversal of 13677520477 is 77402577631.

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 8876277796 + 4801242681 = 94214^2 + 69291^2 .

It is a cyclic number.

It is not a de Polignac number, because 13677520477 - 2⁷ = 13677520349 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13677520477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13677520471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28376358 + ... + 28376839.

It is an arithmetic number, because the mean of its divisors is an integer number (3433568479).

Almost surely, 2^13677520477 is an apocalyptic number.

It is an amenable number.

13677520477 is a deficient number, since it is larger than the sum of its proper divisors (56753439).

13677520477 is an equidigital number, since it uses as much as digits as its factorization.

13677520477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56753438.

The product of its (nonzero) digits is 1728720, while the sum is 49.

The spelling of 13677520477 in words is "thirteen billion, six hundred seventy-seven million, five hundred twenty thousand, four hundred seventy-seven".