13887672146 has 8 divisors (see below), whose sum is σ = 20908949580. Its totient is φ = 6918022288.

The previous prime is 13887672143. The next prime is 13887672179. The reversal of 13887672146 is 64127678831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8823784225 + 5063887921 = 93935^2 + 71161^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13887672143) 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, 12906221 + ... + 12907296.

Almost surely, 2^13887672146 is an apocalyptic number.

13887672146 is a deficient number, since it is larger than the sum of its proper divisors (7021277434).

13887672146 is a wasteful number, since it uses less digits than its factorization.

13887672146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25813788.

The product of its digits is 2709504, while the sum is 53.

The spelling of 13887672146 in words is "thirteen billion, eight hundred eighty-seven million, six hundred seventy-two thousand, one hundred forty-six".