13138057975 has 12 divisors (see below), whose sum is σ = 18618505264. Its totient is φ = 9008953920.

The previous prime is 13138057973. The next prime is 13138057979. The reversal of 13138057975 is 57975083131.

It is a happy number.

It is not a de Polignac number, because 13138057975 - 2¹ = 13138057973 is a prime.

It is a super-2 number, since 2×13138057975² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13138057973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37537134 + ... + 37537483.

Almost surely, 2^13138057975 is an apocalyptic number.

13138057975 is a deficient number, since it is larger than the sum of its proper divisors (5480447289).

13138057975 is an equidigital number, since it uses as much as digits as its factorization.

13138057975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75074634 (or 75074629 counting only the distinct ones).

The product of its (nonzero) digits is 793800, while the sum is 49.

The spelling of 13138057975 in words is "thirteen billion, one hundred thirty-eight million, fifty-seven thousand, nine hundred seventy-five".