13846777685 has 16 divisors (see below), whose sum is σ = 18330747120. Its totient is φ = 9975912960.

The previous prime is 13846777667. The next prime is 13846777691. The reversal of 13846777685 is 58677764831.

It can be written as a sum of positive squares in 8 ways, for example, as 647295364 + 13199482321 = 25442^2 + 114889^2 .

It is not a de Polignac number, because 13846777685 - 2²⁰ = 13845729109 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2595230 + ... + 2600559.

It is an arithmetic number, because the mean of its divisors is an integer number (1145671695).

Almost surely, 2^13846777685 is an apocalyptic number.

It is an amenable number.

13846777685 is a deficient number, since it is larger than the sum of its proper divisors (4483969435).

13846777685 is a wasteful number, since it uses less digits than its factorization.

13846777685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5195848.

The product of its digits is 47416320, while the sum is 62.

The spelling of 13846777685 in words is "thirteen billion, eight hundred forty-six million, seven hundred seventy-seven thousand, six hundred eighty-five".