7312287513 has 8 divisors (see below), whose sum is σ = 9760469728. Its totient is φ = 4869481824.

The previous prime is 7312287511. The next prime is 7312287539. The reversal of 7312287513 is 3157822137.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7312287513 - 2¹ = 7312287511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7312287511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1340956 + ... + 1346397.

It is an arithmetic number, because the mean of its divisors is an integer number (1220058716).

Almost surely, 2^7312287513 is an apocalyptic number.

It is an amenable number.

7312287513 is a deficient number, since it is larger than the sum of its proper divisors (2448182215).

7312287513 is a wasteful number, since it uses less digits than its factorization.

7312287513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2688263.

The product of its digits is 70560, while the sum is 39.

The square root of 7312287513 is about 85511.9144505606. The cubic root of 7312287513 is about 1940.9652185776.

The spelling of 7312287513 in words is "seven billion, three hundred twelve million, two hundred eighty-seven thousand, five hundred thirteen".