831312987250 has 32 divisors (see below), whose sum is σ = 1563073604352. Its totient is φ = 331060303600.

The previous prime is 831312987227. The next prime is 831312987301. The reversal of 831312987250 is 52789213138.

It is a junction number, because it is equal to n+sod(n) for n = 831312987194 and 831312987203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7267594 + ... + 7381093.

It is an arithmetic number, because the mean of its divisors is an integer number (48846050136).

Almost surely, 2^831312987250 is an apocalyptic number.

831312987250 is a deficient number, since it is larger than the sum of its proper divisors (731760617102).

831312987250 is a wasteful number, since it uses less digits than its factorization.

831312987250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14648931 (or 14648921 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 831312987250 in words is "eight hundred thirty-one billion, three hundred twelve million, nine hundred eighty-seven thousand, two hundred fifty".