7227752913 has 6 divisors (see below), whose sum is σ = 10440087554. Its totient is φ = 4818501936.

The previous prime is 7227752899. The next prime is 7227752957. The reversal of 7227752913 is 3192577227.

It can be written as a sum of positive squares in only one way, i.e., 6837966864 + 389786049 = 82692^2 + 19743^2 .

It is not a de Polignac number, because 7227752913 - 2⁹ = 7227752401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7227752993) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 401541820 + ... + 401541837.

Almost surely, 2^7227752913 is an apocalyptic number.

It is an amenable number.

7227752913 is a deficient number, since it is larger than the sum of its proper divisors (3212334641).

7227752913 is a wasteful number, since it uses less digits than its factorization.

7227752913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803083663 (or 803083660 counting only the distinct ones).

The product of its digits is 370440, while the sum is 45.

The square root of 7227752913 is about 85016.1920636299. The cubic root of 7227752913 is about 1933.4566199983.

The spelling of 7227752913 in words is "seven billion, two hundred twenty-seven million, seven hundred fifty-two thousand, nine hundred thirteen".