31770806848 has 112 divisors (see below), whose sum is σ = 71350997760. Its totient is φ = 13909708800.

The previous prime is 31770806843. The next prime is 31770806857. The reversal of 31770806848 is 84860807713.

It is a junction number, because it is equal to n+sod(n) for n = 31770806795 and 31770806804.

It is not an unprimeable number, because it can be changed into a prime (31770806843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2273290 + ... + 2287222.

It is an arithmetic number, because the mean of its divisors is an integer number (637062480).

Almost surely, 2^31770806848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31770806848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35675498880).

31770806848 is an abundant number, since it is smaller than the sum of its proper divisors (39580190912).

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

31770806848 is a wasteful number, since it uses less digits than its factorization.

31770806848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14076 (or 14066 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 52.

The spelling of 31770806848 in words is "thirty-one billion, seven hundred seventy million, eight hundred six thousand, eight hundred forty-eight".