22436778774 has 16 divisors (see below), whose sum is σ = 45634127040. Its totient is φ = 7352164680.

The previous prime is 22436778773. The next prime is 22436778803. The reversal of 22436778774 is 47787763422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22436778773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31690012 + ... + 31690719.

It is an arithmetic number, because the mean of its divisors is an integer number (2852132940).

Almost surely, 2^22436778774 is an apocalyptic number.

22436778774 is an abundant number, since it is smaller than the sum of its proper divisors (23197348266).

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

22436778774 is a wasteful number, since it uses less digits than its factorization.

22436778774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63380795.

The product of its digits is 22127616, while the sum is 57.

The spelling of 22436778774 in words is "twenty-two billion, four hundred thirty-six million, seven hundred seventy-eight thousand, seven hundred seventy-four".