22777762540 has 72 divisors (see below), whose sum is σ = 51843607200. Its totient is φ = 8402494464.

The previous prime is 22777762537. The next prime is 22777762541. The reversal of 22777762540 is 4526777722.

It is not an unprimeable number, because it can be changed into a prime (22777762541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4726212 + ... + 4731028.

It is an arithmetic number, because the mean of its divisors is an integer number (720050100).

Almost surely, 2^22777762540 is an apocalyptic number.

22777762540 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 22777762540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25921803600).

22777762540 is an abundant number, since it is smaller than the sum of its proper divisors (29065844660).

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

22777762540 is a wasteful number, since it uses less digits than its factorization.

22777762540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6251 (or 6236 counting only the distinct ones).

The product of its (nonzero) digits is 2304960, while the sum is 49.

The spelling of 22777762540 in words is "twenty-two billion, seven hundred seventy-seven million, seven hundred sixty-two thousand, five hundred forty".