7928049313 has 2 divisors, whose sum is σ = 7928049314. Its totient is φ = 7928049312.

The previous prime is 7928049293. The next prime is 7928049323. The reversal of 7928049313 is 3139408297.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5668282944 + 2259766369 = 75288^2 + 47537^2 .

It is an emirp because it is prime and its reverse (3139408297) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7928049313 - 2²⁹ = 7391178401 is a prime.

It is not a weakly prime, because it can be changed into another prime (7928049323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3964024656 + 3964024657.

It is an arithmetic number, because the mean of its divisors is an integer number (3964024657).

Almost surely, 2^7928049313 is an apocalyptic number.

It is an amenable number.

7928049313 is a deficient number, since it is larger than the sum of its proper divisors (1).

7928049313 is an equidigital number, since it uses as much as digits as its factorization.

7928049313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 7928049313 is about 89039.5940747710. The cubic root of 7928049313 is about 1993.9860437074.

The spelling of 7928049313 in words is "seven billion, nine hundred twenty-eight million, forty-nine thousand, three hundred thirteen".