22491870546 has 32 divisors (see below), whose sum is σ = 45245729088. Its totient is φ = 7453736000.

The previous prime is 22491870523. The next prime is 22491870563. The reversal of 22491870546 is 64507819422.

It is a junction number, because it is equal to n+sod(n) for n = 22491870495 and 22491870504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 825436 + ... + 852248.

It is an arithmetic number, because the mean of its divisors is an integer number (1413929034).

Almost surely, 2^22491870546 is an apocalyptic number.

22491870546 is an abundant number, since it is smaller than the sum of its proper divisors (22753858542).

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

22491870546 is a wasteful number, since it uses less digits than its factorization.

22491870546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27626.

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 22491870546 in words is "twenty-two billion, four hundred ninety-one million, eight hundred seventy thousand, five hundred forty-six".