31864770848 has 24 divisors (see below), whose sum is σ = 62743448880. Its totient is φ = 15929926720.

The previous prime is 31864770803. The next prime is 31864770863. The reversal of 31864770848 is 84807746813.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31864770793 and 31864770802.

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, 143483 + ... + 290373.

It is an arithmetic number, because the mean of its divisors is an integer number (2614310370).

Almost surely, 2^31864770848 is an apocalyptic number.

It is an amenable number.

31864770848 is a deficient number, since it is larger than the sum of its proper divisors (30878678032).

31864770848 is a wasteful number, since it uses less digits than its factorization.

31864770848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153680 (or 153672 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 56.

The spelling of 31864770848 in words is "thirty-one billion, eight hundred sixty-four million, seven hundred seventy thousand, eight hundred forty-eight".