22778455032 has 48 divisors (see below), whose sum is σ = 63681708480. Its totient is φ = 7347888000.

The previous prime is 22778455027. The next prime is 22778455039. The reversal of 22778455032 is 23055487722.

22778455032 is a `hidden beast` number, since 2 + 27 + 78 + 4 + 550 + 3 + 2 = 666.

It is a super-2 number, since 2×22778455032² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22778455039) 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, 5100469 + ... + 5104932.

It is an arithmetic number, because the mean of its divisors is an integer number (1326702260).

Almost surely, 2^22778455032 is an apocalyptic number.

It is an amenable number.

22778455032 is an abundant number, since it is smaller than the sum of its proper divisors (40903253448).

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

22778455032 is a wasteful number, since it uses less digits than its factorization.

22778455032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10205444 (or 10205437 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 45.

The spelling of 22778455032 in words is "twenty-two billion, seven hundred seventy-eight million, four hundred fifty-five thousand, thirty-two".