22487250780 has 120 divisors (see below), whose sum is σ = 70744977072. Its totient is φ = 5979460608.

The previous prime is 22487250733. The next prime is 22487250781. The reversal of 22487250780 is 8705278422.

22487250780 is a `hidden beast` number, since 22 + 48 + 7 + 2 + 507 + 80 = 666.

It is a super-2 number, since 2×22487250780² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22487250781) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 552199 + ... + 591521.

Almost surely, 2^22487250780 is an apocalyptic number.

22487250780 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 22487250780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35372488536).

22487250780 is an abundant number, since it is smaller than the sum of its proper divisors (48257726292).

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

22487250780 is a wasteful number, since it uses less digits than its factorization.

22487250780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39697 (or 39686 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 45.

The spelling of 22487250780 in words is "twenty-two billion, four hundred eighty-seven million, two hundred fifty thousand, seven hundred eighty".