22277747657 has 24 divisors (see below), whose sum is σ = 25035647616. Its totient is φ = 19799780000.

The previous prime is 22277747647. The next prime is 22277747671. The reversal of 22277747657 is 75674777222.

It is not a de Polignac number, because 22277747657 - 2⁴ = 22277747641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22277747647) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7397282 + ... + 7400292.

It is an arithmetic number, because the mean of its divisors is an integer number (1043151984).

Almost surely, 2^22277747657 is an apocalyptic number.

It is an amenable number.

22277747657 is a deficient number, since it is larger than the sum of its proper divisors (2757899959).

22277747657 is a wasteful number, since it uses less digits than its factorization.

22277747657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4381 (or 4370 counting only the distinct ones).

The product of its digits is 16134720, while the sum is 56.

The spelling of 22277747657 in words is "twenty-two billion, two hundred seventy-seven million, seven hundred forty-seven thousand, six hundred fifty-seven".