22251654894 has 24 divisors (see below), whose sum is σ = 51769156968. Its totient is φ = 6357615600.

The previous prime is 22251654881. The next prime is 22251654913. The reversal of 22251654894 is 49845615222.

It is a super-2 number, since 2×22251654894² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37842657 + ... + 37843244.

It is an arithmetic number, because the mean of its divisors is an integer number (2157048207).

Almost surely, 2^22251654894 is an apocalyptic number.

22251654894 is an abundant number, since it is smaller than the sum of its proper divisors (29517502074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22251654894 is a wasteful number, since it uses less digits than its factorization.

22251654894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75685920 (or 75685913 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 48.

The spelling of 22251654894 in words is "twenty-two billion, two hundred fifty-one million, six hundred fifty-four thousand, eight hundred ninety-four".