22688451861 has 32 divisors (see below), whose sum is σ = 31646160000. Its totient is φ = 14440812288.

The previous prime is 22688451853. The next prime is 22688451883. The reversal of 22688451861 is 16815488622.

It is not a de Polignac number, because 22688451861 - 2³ = 22688451853 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22688451811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2964706 + ... + 2972348.

It is an arithmetic number, because the mean of its divisors is an integer number (988942500).

Almost surely, 2^22688451861 is an apocalyptic number.

It is an amenable number.

22688451861 is a deficient number, since it is larger than the sum of its proper divisors (8957708139).

22688451861 is a wasteful number, since it uses less digits than its factorization.

22688451861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8053.

The product of its digits is 1474560, while the sum is 51.

The spelling of 22688451861 in words is "twenty-two billion, six hundred eighty-eight million, four hundred fifty-one thousand, eight hundred sixty-one".