7724277313 has 2 divisors, whose sum is σ = 7724277314. Its totient is φ = 7724277312.

The previous prime is 7724277299. The next prime is 7724277349. The reversal of 7724277313 is 3137724277.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7612911504 + 111365809 = 87252^2 + 10553^2 .

It is a cyclic number.

It is not a de Polignac number, because 7724277313 - 2¹³ = 7724269121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7724277313.

It is not a weakly prime, because it can be changed into another prime (7724277373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3862138656 + 3862138657.

It is an arithmetic number, because the mean of its divisors is an integer number (3862138657).

Almost surely, 2^7724277313 is an apocalyptic number.

It is an amenable number.

7724277313 is a deficient number, since it is larger than the sum of its proper divisors (1).

7724277313 is an equidigital number, since it uses as much as digits as its factorization.

7724277313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345744, while the sum is 43.

The square root of 7724277313 is about 87887.8678373756. The cubic root of 7724277313 is about 1976.7539672000.

The spelling of 7724277313 in words is "seven billion, seven hundred twenty-four million, two hundred seventy-seven thousand, three hundred thirteen".