7928511313 has 8 divisors (see below), whose sum is σ = 7975501056. Its totient is φ = 7881610800.

The previous prime is 7928511307. The next prime is 7928511329. The reversal of 7928511313 is 3131158297.

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

It is a cyclic number.

It is not a de Polignac number, because 7928511313 - 2²⁹ = 7391640401 is a prime.

It is a super-2 number, since 2×7928511313² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7928511343) 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, 160323 + ... + 203863.

It is an arithmetic number, because the mean of its divisors is an integer number (996937632).

Almost surely, 2^7928511313 is an apocalyptic number.

It is an amenable number.

7928511313 is a deficient number, since it is larger than the sum of its proper divisors (46989743).

7928511313 is a wasteful number, since it uses less digits than its factorization.

7928511313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44615.

The product of its digits is 45360, while the sum is 40.

The square root of 7928511313 is about 89042.1883884263. The cubic root of 7928511313 is about 1994.0247755409.

The spelling of 7928511313 in words is "seven billion, nine hundred twenty-eight million, five hundred eleven thousand, three hundred thirteen".