13988526975 has 72 divisors (see below), whose sum is σ = 26191350432. Its totient is φ = 7123353600.

The previous prime is 13988526941. The next prime is 13988526991. The reversal of 13988526975 is 57962588931.

13988526975 is a `hidden beast` number, since 1 + 39 + 8 + 8 + 526 + 9 + 75 = 666.

It is not a de Polignac number, because 13988526975 - 2⁷ = 13988526847 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3315067 + ... + 3319283.

It is an arithmetic number, because the mean of its divisors is an integer number (363768756).

Almost surely, 2^13988526975 is an apocalyptic number.

13988526975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13988526975 is a deficient number, since it is larger than the sum of its proper divisors (12202823457).

13988526975 is a wasteful number, since it uses less digits than its factorization.

13988526975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4897 (or 4889 counting only the distinct ones).

The product of its digits is 32659200, while the sum is 63.

The spelling of 13988526975 in words is "thirteen billion, nine hundred eighty-eight million, five hundred twenty-six thousand, nine hundred seventy-five".