31941682409 has 16 divisors (see below), whose sum is σ = 40054597632. Its totient is φ = 24795695808.

The previous prime is 31941682403. The next prime is 31941682417. The reversal of 31941682409 is 90428614913.

It is not a de Polignac number, because 31941682409 - 2⁴ = 31941682393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31941682403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3306569 + ... + 3316214.

It is an arithmetic number, because the mean of its divisors is an integer number (2503412352).

Almost surely, 2^31941682409 is an apocalyptic number.

It is an amenable number.

31941682409 is a deficient number, since it is larger than the sum of its proper divisors (8112915223).

31941682409 is a wasteful number, since it uses less digits than its factorization.

31941682409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6622856.

The product of its (nonzero) digits is 373248, while the sum is 47.

The spelling of 31941682409 in words is "thirty-one billion, nine hundred forty-one million, six hundred eighty-two thousand, four hundred nine".