31838426775 has 72 divisors (see below), whose sum is σ = 61425401856. Its totient is φ = 15718190400.

The previous prime is 31838426743. The next prime is 31838426779. The reversal of 31838426775 is 57762483813.

It is a happy number.

It is not a de Polignac number, because 31838426775 - 2⁵ = 31838426743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31838426779) by changing a digit.

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, 61194 + ... + 259656.

Almost surely, 2^31838426775 is an apocalyptic number.

31838426775 is a deficient number, since it is larger than the sum of its proper divisors (29586975081).

31838426775 is a wasteful number, since it uses less digits than its factorization.

31838426775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198533 (or 198525 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 54.

The spelling of 31838426775 in words is "thirty-one billion, eight hundred thirty-eight million, four hundred twenty-six thousand, seven hundred seventy-five".