31050245040 has 80 divisors (see below), whose sum is σ = 98071946208. Its totient is φ = 8123834368.

The previous prime is 31050245027. The next prime is 31050245047. The reversal of 31050245040 is 4054205013.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 31050245040.

It is not an unprimeable number, because it can be changed into a prime (31050245047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1207809 + ... + 1233248.

Almost surely, 2^31050245040 is an apocalyptic number.

31050245040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31050245040 is an abundant number, since it is smaller than the sum of its proper divisors (67021701168).

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

31050245040 is a wasteful number, since it uses less digits than its factorization.

31050245040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2441126 (or 2441120 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The spelling of 31050245040 in words is "thirty-one billion, fifty million, two hundred forty-five thousand, forty".