13875870511 has 4 divisors (see below), whose sum is σ = 13877942400. Its totient is φ = 13873798624.

The previous prime is 13875870493. The next prime is 13875870623. The reversal of 13875870511 is 11507857831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11507857831 = 41969 ⋅274199.

It is a cyclic number.

It is not a de Polignac number, because 13875870511 - 2⁵ = 13875870479 is a prime.

It is a super-2 number, since 2×13875870511² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13875870311) 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, 1025866 + ... + 1039303.

It is an arithmetic number, because the mean of its divisors is an integer number (3469485600).

Almost surely, 2^13875870511 is an apocalyptic number.

13875870511 is a deficient number, since it is larger than the sum of its proper divisors (2071889).

13875870511 is an equidigital number, since it uses as much as digits as its factorization.

13875870511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2071888.

The product of its (nonzero) digits is 235200, while the sum is 46.

The spelling of 13875870511 in words is "thirteen billion, eight hundred seventy-five million, eight hundred seventy thousand, five hundred eleven".