22749017976828 has 240 divisors, whose sum is σ = 70587650304864. Its totient is φ = 6297758760960.

The previous prime is 22749017976767. The next prime is 22749017976859. The reversal of 22749017976828 is 82867971094722.

22749017976828 is a `hidden beast` number, since 2 + 2 + 7 + 490 + 1 + 79 + 7 + 68 + 2 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1963276 + ... + 7025132.

Almost surely, 2^{22749017976828} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22749017976828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35293825152432).

22749017976828 is an abundant number, since it is smaller than the sum of its proper divisors (47838632328036).

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

22749017976828 is a wasteful number, since it uses less digits than its factorization.

22749017976828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5061994 (or 5061983 counting only the distinct ones).

The product of its (nonzero) digits is 341397504, while the sum is 72.

The spelling of 22749017976828 in words is "twenty-two trillion, seven hundred forty-nine billion, seventeen million, nine hundred seventy-six thousand, eight hundred twenty-eight".