22747542257 has 12 divisors (see below), whose sum is σ = 26474293188. Its totient is φ = 19463136000.

The previous prime is 22747542247. The next prime is 22747542287. The reversal of 22747542257 is 75224574722.

It can be written as a sum of positive squares in 2 ways, for example, as 18042131041 + 4705411216 = 134321^2 + 68596^2 .

It is not a de Polignac number, because 22747542257 - 2⁴ = 22747542241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22747542247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5527244 + ... + 5531357.

It is an arithmetic number, because the mean of its divisors is an integer number (2206191099).

Almost surely, 2^22747542257 is an apocalyptic number.

It is an amenable number.

22747542257 is a deficient number, since it is larger than the sum of its proper divisors (3726750931).

22747542257 is a wasteful number, since it uses less digits than its factorization.

22747542257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11058640 (or 11058629 counting only the distinct ones).

The product of its digits is 2195200, while the sum is 47.

The spelling of 22747542257 in words is "twenty-two billion, seven hundred forty-seven million, five hundred forty-two thousand, two hundred fifty-seven".