7315291494 has 128 divisors (see below), whose sum is σ = 19189632000. Its totient is φ = 2022257664.

The previous prime is 7315291493. The next prime is 7315291523. The reversal of 7315291494 is 4941925137.

7315291494 is a `hidden beast` number, since 7 + 3 + 152 + 9 + 1 + 494 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7315291493) 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 63 ways as a sum of consecutive naturals, for example, 1769622 + ... + 1773750.

It is an arithmetic number, because the mean of its divisors is an integer number (149919000).

Almost surely, 2^7315291494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7315291494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9594816000).

7315291494 is an abundant number, since it is smaller than the sum of its proper divisors (11874340506).

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

7315291494 is a wasteful number, since it uses less digits than its factorization.

7315291494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4299 (or 4293 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 7315291494 is about 85529.4773396868. The cubic root of 7315291494 is about 1941.2309732806.

The spelling of 7315291494 in words is "seven billion, three hundred fifteen million, two hundred ninety-one thousand, four hundred ninety-four".