13879451923505 has 16 divisors (see below), whose sum is σ = 19053356734080. Its totient is φ = 9507998556672.

The previous prime is 13879451923481. The next prime is 13879451923529. The reversal of 13879451923505 is 50532915497831.

It is an interprime number because it is at equal distance from previous prime (13879451923481) and next prime (13879451923529).

It is not a de Polignac number, because 13879451923505 - 2³² = 13875156956209 is a prime.

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, 194545184 + ... + 194616513.

It is an arithmetic number, because the mean of its divisors is an integer number (1190834795880).

Almost surely, 2^{13879451923505} is an apocalyptic number.

It is an amenable number.

13879451923505 is a deficient number, since it is larger than the sum of its proper divisors (5173904810575).

13879451923505 is a wasteful number, since it uses less digits than its factorization.

13879451923505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389162728.

The product of its (nonzero) digits is 40824000, while the sum is 62.

The spelling of 13879451923505 in words is "thirteen trillion, eight hundred seventy-nine billion, four hundred fifty-one million, nine hundred twenty-three thousand, five hundred five".