22778286774404 has 18 divisors (see below), whose sum is σ = 46370083791150. Its totient is φ = 9762122903232.

The previous prime is 22778286774401. The next prime is 22778286774409. The reversal of 22778286774404 is 40447768287722.

It can be written as a sum of positive squares in only one way, i.e., 22493696533504 + 284590240900 = 4742752^2 + 533470^2 .

It is not an unprimeable number, because it can be changed into a prime (22778286774401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58107874229 + ... + 58107874620.

It is an arithmetic number, because the mean of its divisors is an integer number (2576115766175).

Almost surely, 2^{22778286774404} is an apocalyptic number.

It is an amenable number.

22778286774404 is an abundant number, since it is smaller than the sum of its proper divisors (23591797016746).

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

22778286774404 is a wasteful number, since it uses less digits than its factorization.

22778286774404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116215748867 (or 116215748858 counting only the distinct ones).

The product of its (nonzero) digits is 472055808, while the sum is 68.

The spelling of 22778286774404 in words is "twenty-two trillion, seven hundred seventy-eight billion, two hundred eighty-six million, seven hundred seventy-four thousand, four hundred four".