7313531904 has 704 divisors, whose sum is σ = 27165818880. Its totient is φ = 1897758720.

The previous prime is 7313531893. The next prime is 7313531909. The reversal of 7313531904 is 4091353137.

7313531904 is a `hidden beast` number, since 7 + 31 + 3 + 531 + 90 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (7313531909) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 137991142 + ... + 137991194.

Almost surely, 2^7313531904 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 7313531904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13582909440).

7313531904 is an abundant number, since it is smaller than the sum of its proper divisors (19852286976).

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

7313531904 is a wasteful number, since it uses less digits than its factorization.

7313531904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 7313531904 is about 85519.1902674482. The cubic root of 7313531904 is about 1941.0753155728.

The spelling of 7313531904 in words is "seven billion, three hundred thirteen million, five hundred thirty-one thousand, nine hundred four".