22746563840 has 576 divisors, whose sum is σ = 75112192512. Its totient is φ = 6370099200.

The previous prime is 22746563837. The next prime is 22746563867. The reversal of 22746563840 is 4836564722.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 52532264 + ... + 52532696.

It is an arithmetic number, because the mean of its divisors is an integer number (130403112).

Almost surely, 2^22746563840 is an apocalyptic number.

22746563840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22746563840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37556096256).

22746563840 is an abundant number, since it is smaller than the sum of its proper divisors (52365628672).

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

22746563840 is a wasteful number, since it uses less digits than its factorization.

22746563840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 47.

The spelling of 22746563840 in words is "twenty-two billion, seven hundred forty-six million, five hundred sixty-three thousand, eight hundred forty".