31838758162 has 4 divisors (see below), whose sum is σ = 47758137246. Its totient is φ = 15919379080.

The previous prime is 31838758151. The next prime is 31838758163. The reversal of 31838758162 is 26185783813.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 26185783813 = 7 ⋅3740826259.

It can be written as a sum of positive squares in only one way, i.e., 26108419561 + 5730338601 = 161581^2 + 75699^2 .

It is not an unprimeable number, because it can be changed into a prime (31838758163) 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 as a sum of consecutive naturals, namely, 7959689539 + ... + 7959689542.

Almost surely, 2^31838758162 is an apocalyptic number.

31838758162 is a deficient number, since it is larger than the sum of its proper divisors (15919379084).

31838758162 is a wasteful number, since it uses less digits than its factorization.

31838758162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15919379083.

The product of its digits is 1935360, while the sum is 52.

The spelling of 31838758162 in words is "thirty-one billion, eight hundred thirty-eight million, seven hundred fifty-eight thousand, one hundred sixty-two".