2227748913 has 28 divisors (see below), whose sum is σ = 3597041140. Its totient is φ = 1370916576.

The previous prime is 2227748893. The next prime is 2227748923. The reversal of 2227748913 is 3198477222.

It can be written as a sum of positive squares in 2 ways, for example, as 578739249 + 1649009664 = 24057^2 + 40608^2 .

It is not a de Polignac number, because 2227748913 - 2²² = 2223554609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2227748923) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 108058 + ... + 127011.

It is an arithmetic number, because the mean of its divisors is an integer number (128465755).

Almost surely, 2^2227748913 is an apocalyptic number.

It is an amenable number.

2227748913 is a deficient number, since it is larger than the sum of its proper divisors (1369292227).

2227748913 is an equidigital number, since it uses as much as digits as its factorization.

2227748913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235100 (or 235085 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 2227748913 is about 47199.0350854761. The cubic root of 2227748913 is about 1306.0367979441.

The spelling of 2227748913 in words is "two billion, two hundred twenty-seven million, seven hundred forty-eight thousand, nine hundred thirteen".