7928133413 has 4 divisors (see below), whose sum is σ = 8394494220. Its totient is φ = 7461772608.

The previous prime is 7928133403. The next prime is 7928133443. The reversal of 7928133413 is 3143318297.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6872078404 + 1056055009 = 82898^2 + 32497^2 .

It is a cyclic number.

It is not a de Polignac number, because 7928133413 - 2⁴ = 7928133397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7928133403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233180378 + ... + 233180411.

It is an arithmetic number, because the mean of its divisors is an integer number (2098623555).

Almost surely, 2^7928133413 is an apocalyptic number.

It is an amenable number.

7928133413 is a deficient number, since it is larger than the sum of its proper divisors (466360807).

7928133413 is a wasteful number, since it uses less digits than its factorization.

7928133413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466360806.

The product of its digits is 108864, while the sum is 41.

The square root of 7928133413 is about 89040.0663353302. The cubic root of 7928133413 is about 1993.9930943545.

The spelling of 7928133413 in words is "seven billion, nine hundred twenty-eight million, one hundred thirty-three thousand, four hundred thirteen".