22780418877 has 12 divisors (see below), whose sum is σ = 33212574720. Its totient is φ = 15045011208.

The previous prime is 22780418867. The next prime is 22780418917. The reversal of 22780418877 is 77881408722.

It is not a de Polignac number, because 22780418877 - 2¹⁶ = 22780353341 is a prime.

It is a super-2 number, since 2×22780418877² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22780418827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11826877 + ... + 11828802.

It is an arithmetic number, because the mean of its divisors is an integer number (2767714560).

Almost surely, 2^22780418877 is an apocalyptic number.

It is an amenable number.

22780418877 is a deficient number, since it is larger than the sum of its proper divisors (10432155843).

22780418877 is a wasteful number, since it uses less digits than its factorization.

22780418877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23655792 (or 23655789 counting only the distinct ones).

The product of its (nonzero) digits is 2809856, while the sum is 54.

The spelling of 22780418877 in words is "twenty-two billion, seven hundred eighty million, four hundred eighteen thousand, eight hundred seventy-seven".