22628865487 has 8 divisors (see below), whose sum is σ = 23355878400. Its totient is φ = 21913301784.

The previous prime is 22628865449. The next prime is 22628865517. The reversal of 22628865487 is 78456882622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22628865487 - 2²⁷ = 22494647759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22628860487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2858287 + ... + 2866192.

It is an arithmetic number, because the mean of its divisors is an integer number (2919484800).

Almost surely, 2^22628865487 is an apocalyptic number.

22628865487 is a deficient number, since it is larger than the sum of its proper divisors (727012913).

22628865487 is an equidigital number, since it uses as much as digits as its factorization.

22628865487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5724605.

The product of its digits is 20643840, while the sum is 58.

The spelling of 22628865487 in words is "twenty-two billion, six hundred twenty-eight million, eight hundred sixty-five thousand, four hundred eighty-seven".