22777522404 has 144 divisors (see below), whose sum is σ = 66933328896. Its totient is φ = 5975424000.

The previous prime is 22777522337. The next prime is 22777522409. The reversal of 22777522404 is 40422577722.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (22777522409) 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 47 ways as a sum of consecutive naturals, for example, 1452204 + ... + 1467804.

It is an arithmetic number, because the mean of its divisors is an integer number (464814784).

Almost surely, 2^22777522404 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 22777522404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33466664448).

22777522404 is an abundant number, since it is smaller than the sum of its proper divisors (44155806492).

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

22777522404 is a wasteful number, since it uses less digits than its factorization.

22777522404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15826 (or 15817 counting only the distinct ones).

The product of its (nonzero) digits is 439040, while the sum is 42.

The spelling of 22777522404 in words is "twenty-two billion, seven hundred seventy-seven million, five hundred twenty-two thousand, four hundred four".