13928562874 has 8 divisors (see below), whose sum is σ = 20893771188. Its totient is φ = 6963972480.

The previous prime is 13928562871. The next prime is 13928562889. The reversal of 13928562874 is 47826582931.

It can be written as a sum of positive squares in 2 ways, for example, as 11330112249 + 2598450625 = 106443^2 + 50975^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×13928562874² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13928562871) 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, 93277 + ... + 191200.

Almost surely, 2^13928562874 is an apocalyptic number.

13928562874 is a deficient number, since it is larger than the sum of its proper divisors (6965208314).

13928562874 is a wasteful number, since it uses less digits than its factorization.

13928562874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308960.

The product of its digits is 5806080, while the sum is 55.

The spelling of 13928562874 in words is "thirteen billion, nine hundred twenty-eight million, five hundred sixty-two thousand, eight hundred seventy-four".