31900005269 has 8 divisors (see below), whose sum is σ = 35648786880. Its totient is φ = 28292687200.

The previous prime is 31900005259. The next prime is 31900005281. The reversal of 31900005269 is 96250000913.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31900005269 - 2¹² = 31900001173 is a prime.

It is a super-2 number, since 2×31900005269² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31900005259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35365409 + ... + 35366310.

It is an arithmetic number, because the mean of its divisors is an integer number (4456098360).

Almost surely, 2^31900005269 is an apocalyptic number.

It is an amenable number.

31900005269 is a deficient number, since it is larger than the sum of its proper divisors (3748781611).

31900005269 is a wasteful number, since it uses less digits than its factorization.

31900005269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70731771.

The product of its (nonzero) digits is 14580, while the sum is 35.

The spelling of 31900005269 in words is "thirty-one billion, nine hundred million, five thousand, two hundred sixty-nine".