22749451776 has 320 divisors, whose sum is σ = 70159795200. Its totient is φ = 7271866368.

The previous prime is 22749451763. The next prime is 22749451787. The reversal of 22749451776 is 67715494722.

It is a super-2 number, since 2×22749451776² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40407271 + ... + 40407833.

It is an arithmetic number, because the mean of its divisors is an integer number (219249360).

Almost surely, 2^22749451776 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 22749451776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35079897600).

22749451776 is an abundant number, since it is smaller than the sum of its proper divisors (47410343424).

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

22749451776 is an equidigital number, since it uses as much as digits as its factorization.

22749451776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706 (or 684 counting only the distinct ones).

The product of its digits is 5927040, while the sum is 54.

The spelling of 22749451776 in words is "twenty-two billion, seven hundred forty-nine million, four hundred fifty-one thousand, seven hundred seventy-six".