31809947114 has 64 divisors (see below), whose sum is σ = 53733888000. Its totient is φ = 14001042240.

The previous prime is 31809947089. The next prime is 31809947149. The reversal of 31809947114 is 41174990813.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30615407 + ... + 30616445.

It is an arithmetic number, because the mean of its divisors is an integer number (839592000).

Almost surely, 2^31809947114 is an apocalyptic number.

31809947114 is a deficient number, since it is larger than the sum of its proper divisors (21923940886).

31809947114 is a wasteful number, since it uses less digits than its factorization.

31809947114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443.

The product of its (nonzero) digits is 217728, while the sum is 47.

The spelling of 31809947114 in words is "thirty-one billion, eight hundred nine million, nine hundred forty-seven thousand, one hundred fourteen".