22697774667 has 16 divisors (see below), whose sum is σ = 33648357760. Its totient is φ = 15121938600.

The previous prime is 22697774609. The next prime is 22697774683. The reversal of 22697774667 is 76647779622.

It is a happy number.

It is not a de Polignac number, because 22697774667 - 2¹⁶ = 22697709131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22697772667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233209 + ... + 315882.

It is an arithmetic number, because the mean of its divisors is an integer number (2103022360).

Almost surely, 2^22697774667 is an apocalyptic number.

22697774667 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

22697774667 is a deficient number, since it is larger than the sum of its proper divisors (10950583093).

22697774667 is a wasteful number, since it uses less digits than its factorization.

22697774667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550631 (or 550625 counting only the distinct ones).

The product of its digits is 74680704, while the sum is 63.

The spelling of 22697774667 in words is "twenty-two billion, six hundred ninety-seven million, seven hundred seventy-four thousand, six hundred sixty-seven".