22628873450 has 24 divisors (see below), whose sum is σ = 42233382828. Its totient is φ = 9020650880.

The previous prime is 22628873437. The next prime is 22628873459. The reversal of 22628873450 is 5437882622.

It can be written as a sum of positive squares in 6 ways, for example, as 12585025489 + 10043847961 = 112183^2 + 100219^2 .

It is a super-2 number, since 2×22628873450² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 22628873395 and 22628873404.

It is not an unprimeable number, because it can be changed into a prime (22628873459) 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, 757667 + ... + 786966.

Almost surely, 2^22628873450 is an apocalyptic number.

22628873450 is a deficient number, since it is larger than the sum of its proper divisors (19604509378).

22628873450 is a wasteful number, since it uses less digits than its factorization.

22628873450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544938 (or 1544933 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 47.

The spelling of 22628873450 in words is "twenty-two billion, six hundred twenty-eight million, eight hundred seventy-three thousand, four hundred fifty".