22781993025792 has 2304 divisors, whose sum is σ = 88864794869760. Its totient is φ = 4988672409600.

The previous prime is 22781993025763. The next prime is 22781993025811. The reversal of 22781993025792 is 29752039918722.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 48783710743 + ... + 48783711209.

It is an arithmetic number, because the mean of its divisors is an integer number (38569789440).

Almost surely, 2^{22781993025792} is an apocalyptic number.

22781993025792 is a gapful number since it is divisible by the number (22) 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 22781993025792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44432397434880).

22781993025792 is an abundant number, since it is smaller than the sum of its proper divisors (66082801843968).

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

22781993025792 is a wasteful number, since it uses less digits than its factorization.

22781993025792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660 (or 646 counting only the distinct ones).

The product of its (nonzero) digits is 68584320, while the sum is 66.

The spelling of 22781993025792 in words is "twenty-two trillion, seven hundred eighty-one billion, nine hundred ninety-three million, twenty-five thousand, seven hundred ninety-two".