31780848842 has 16 divisors (see below), whose sum is σ = 48696288000. Its totient is φ = 15551371440.

The previous prime is 31780848839. The next prime is 31780848859. The reversal of 31780848842 is 24884808713.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 630242 + ... + 678797.

It is an arithmetic number, because the mean of its divisors is an integer number (3043518000).

Almost surely, 2^31780848842 is an apocalyptic number.

31780848842 is a deficient number, since it is larger than the sum of its proper divisors (16915439158).

31780848842 is a wasteful number, since it uses less digits than its factorization.

31780848842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309301.

The product of its (nonzero) digits is 2752512, while the sum is 53.

The spelling of 31780848842 in words is "thirty-one billion, seven hundred eighty million, eight hundred forty-eight thousand, eight hundred forty-two".