13561764367 has 16 divisors (see below), whose sum is σ = 14726004480. Its totient is φ = 12455638272.

The previous prime is 13561764361. The next prime is 13561764371. The reversal of 13561764367 is 76346716531.

It is a cyclic number.

It is not a de Polignac number, because 13561764367 - 2¹⁹ = 13561240079 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 13561764367.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13561764361) 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, 57858 + ... + 174559.

It is an arithmetic number, because the mean of its divisors is an integer number (920375280).

Almost surely, 2^13561764367 is an apocalyptic number.

13561764367 is a deficient number, since it is larger than the sum of its proper divisors (1164240113).

13561764367 is a wasteful number, since it uses less digits than its factorization.

13561764367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232542.

The product of its digits is 1905120, while the sum is 49.

The spelling of 13561764367 in words is "thirteen billion, five hundred sixty-one million, seven hundred sixty-four thousand, three hundred sixty-seven".