13891858907 has 16 divisors (see below), whose sum is σ = 15078716352. Its totient is φ = 12746542080.

The previous prime is 13891858891. The next prime is 13891858927. The reversal of 13891858907 is 70985819831.

It is a cyclic number.

It is not a de Polignac number, because 13891858907 - 2⁴ = 13891858891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13891858927) 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, 1069013 + ... + 1081929.

It is an arithmetic number, because the mean of its divisors is an integer number (942419772).

Almost surely, 2^13891858907 is an apocalyptic number.

13891858907 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13891858907 is a deficient number, since it is larger than the sum of its proper divisors (1186857445).

13891858907 is a wasteful number, since it uses less digits than its factorization.

13891858907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14518.

The product of its (nonzero) digits is 4354560, while the sum is 59.

The spelling of 13891858907 in words is "thirteen billion, eight hundred ninety-one million, eight hundred fifty-eight thousand, nine hundred seven".