31809484734 has 8 divisors (see below), whose sum is σ = 63618969480. Its totient is φ = 10603161576.

The previous prime is 31809484697. The next prime is 31809484753. The reversal of 31809484734 is 43748490813.

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

31809484734 is an admirable number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2650790389 + ... + 2650790400.

It is an arithmetic number, because the mean of its divisors is an integer number (7952371185).

Almost surely, 2^31809484734 is an apocalyptic number.

31809484734 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31809484734 is a wasteful number, since it uses less digits than its factorization.

31809484734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5301580794.

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 31809484734 in words is "thirty-one billion, eight hundred nine million, four hundred eighty-four thousand, seven hundred thirty-four".