13853811951 has 48 divisors (see below), whose sum is σ = 23210643456. Its totient is φ = 7799018688.

The previous prime is 13853811947. The next prime is 13853811997. The reversal of 13853811951 is 15911835831.

13853811951 is a `hidden beast` number, since 1 + 3 + 85 + 381 + 195 + 1 = 666.

It is not a de Polignac number, because 13853811951 - 2² = 13853811947 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 13853811897 and 13853811906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13853819951) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1946866 + ... + 1953968.

It is an arithmetic number, because the mean of its divisors is an integer number (483555072).

Almost surely, 2^13853811951 is an apocalyptic number.

13853811951 is a deficient number, since it is larger than the sum of its proper divisors (9356831505).

13853811951 is a wasteful number, since it uses less digits than its factorization.

13853811951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7572 (or 7569 counting only the distinct ones).

The product of its digits is 129600, while the sum is 45.

The spelling of 13853811951 in words is "thirteen billion, eight hundred fifty-three million, eight hundred eleven thousand, nine hundred fifty-one".