13928968251 has 48 divisors (see below), whose sum is σ = 22907259648. Its totient is φ = 8387776800.

The previous prime is 13928968181. The next prime is 13928968289. The reversal of 13928968251 is 15286982931.

It is not a de Polignac number, because 13928968251 - 2¹⁵ = 13928935483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13928966251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 403066 + ... + 436256.

It is an arithmetic number, because the mean of its divisors is an integer number (477234576).

Almost surely, 2^13928968251 is an apocalyptic number.

13928968251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13928968251 is a deficient number, since it is larger than the sum of its proper divisors (8978291397).

13928968251 is a wasteful number, since it uses less digits than its factorization.

13928968251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33374 (or 33362 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 54.

The spelling of 13928968251 in words is "thirteen billion, nine hundred twenty-eight million, nine hundred sixty-eight thousand, two hundred fifty-one".