7313831478 has 48 divisors (see below), whose sum is σ = 15955524000. Its totient is φ = 2421239040.

The previous prime is 7313831471. The next prime is 7313831489. The reversal of 7313831478 is 8741383137.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7313831471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2366158 + ... + 2369246.

It is an arithmetic number, because the mean of its divisors is an integer number (332406750).

Almost surely, 2^7313831478 is an apocalyptic number.

7313831478 is an abundant number, since it is smaller than the sum of its proper divisors (8641692522).

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

7313831478 is a wasteful number, since it uses less digits than its factorization.

7313831478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3957 (or 3954 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 7313831478 is about 85520.9417511290. The cubic root of 7313831478 is about 1941.1018183973.

The spelling of 7313831478 in words is "seven billion, three hundred thirteen million, eight hundred thirty-one thousand, four hundred seventy-eight".