13888762645 has 8 divisors (see below), whose sum is σ = 16762854456. Its totient is φ = 11046783936.

The previous prime is 13888762639. The next prime is 13888762651. The reversal of 13888762645 is 54626788831.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13888762639) and next prime (13888762651).

It can be written as a sum of positive squares in 4 ways, for example, as 9189523044 + 4699239601 = 95862^2 + 68551^2 .

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 13888762645 - 2³ = 13888762637 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 13888762645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8027322 + ... + 8029051.

It is an arithmetic number, because the mean of its divisors is an integer number (2095356807).

Almost surely, 2^13888762645 is an apocalyptic number.

It is an amenable number.

13888762645 is a deficient number, since it is larger than the sum of its proper divisors (2874091811).

13888762645 is a wasteful number, since it uses less digits than its factorization.

13888762645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16056551.

The product of its digits is 15482880, while the sum is 58.

The spelling of 13888762645 in words is "thirteen billion, eight hundred eighty-eight million, seven hundred sixty-two thousand, six hundred forty-five".