31900000269 has 16 divisors (see below), whose sum is σ = 43205594112. Its totient is φ = 20931087408.

The previous prime is 31900000243. The next prime is 31900000271. The reversal of 31900000269 is 96200000913.

It is not a de Polignac number, because 31900000269 - 2⁹ = 31899999757 is a prime.

It is a super-2 number, since 2×31900000269² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31900000169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165532 + ... + 301994.

It is an arithmetic number, because the mean of its divisors is an integer number (2700349632).

Almost surely, 2^31900000269 is an apocalyptic number.

It is an amenable number.

31900000269 is a deficient number, since it is larger than the sum of its proper divisors (11305593843).

31900000269 is a wasteful number, since it uses less digits than its factorization.

31900000269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137696.

The product of its (nonzero) digits is 2916, while the sum is 30.

The spelling of 31900000269 in words is "thirty-one billion, nine hundred million, two hundred sixty-nine", and thus it is an aban number.