31245410928 has 80 divisors (see below), whose sum is σ = 85318745600. Its totient is φ = 9825960960.

The previous prime is 31245410891. The next prime is 31245410929. The reversal of 31245410928 is 82901454213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31245410929) by changing a digit.

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, 148713 + ... + 290871.

It is an arithmetic number, because the mean of its divisors is an integer number (1066484320).

Almost surely, 2^31245410928 is an apocalyptic number.

31245410928 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31245410928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42659372800).

31245410928 is an abundant number, since it is smaller than the sum of its proper divisors (54073334672).

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

31245410928 is a wasteful number, since it uses less digits than its factorization.

31245410928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142430 (or 142424 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 31245410928 in words is "thirty-one billion, two hundred forty-five million, four hundred ten thousand, nine hundred twenty-eight".