13870201887 has 32 divisors (see below), whose sum is σ = 21126087360. Its totient is φ = 8988503040.

The previous prime is 13870201879. The next prime is 13870201903. The reversal of 13870201887 is 78810207831.

It is not a de Polignac number, because 13870201887 - 2³ = 13870201879 is a prime.

It is a super-2 number, since 2×13870201887² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13870201817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 284023 + ... + 329255.

It is an arithmetic number, because the mean of its divisors is an integer number (660190230).

Almost surely, 2^13870201887 is an apocalyptic number.

13870201887 is a deficient number, since it is larger than the sum of its proper divisors (7255885473).

13870201887 is a wasteful number, since it uses less digits than its factorization.

13870201887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45560 (or 45554 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 45.

The spelling of 13870201887 in words is "thirteen billion, eight hundred seventy million, two hundred one thousand, eight hundred eighty-seven".