22049797504 has 128 divisors (see below), whose sum is σ = 55467763200. Its totient is φ = 8507203584.

The previous prime is 22049797457. The next prime is 22049797571. The reversal of 22049797504 is 40579794022.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318867 + ... + 381805.

It is an arithmetic number, because the mean of its divisors is an integer number (433341900).

Almost surely, 2^22049797504 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 22049797504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27733881600).

22049797504 is an abundant number, since it is smaller than the sum of its proper divisors (33417965696).

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

22049797504 is a wasteful number, since it uses less digits than its factorization.

22049797504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63000 (or 62988 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 22049797504 in words is "twenty-two billion, forty-nine million, seven hundred ninety-seven thousand, five hundred four".