22773994480 has 80 divisors (see below), whose sum is σ = 54443265408. Its totient is φ = 8854272000.

The previous prime is 22773994423. The next prime is 22773994489. The reversal of 22773994480 is 8449937722.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22773994489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 876070 + ... + 901690.

Almost surely, 2^22773994480 is an apocalyptic number.

22773994480 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 22773994480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27221632704).

22773994480 is an abundant number, since it is smaller than the sum of its proper divisors (31669270928).

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

22773994480 is a wasteful number, since it uses less digits than its factorization.

22773994480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25946 (or 25940 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 55.

The spelling of 22773994480 in words is "twenty-two billion, seven hundred seventy-three million, nine hundred ninety-four thousand, four hundred eighty".