22249337778 has 48 divisors (see below), whose sum is σ = 49291848216. Its totient is φ = 7250530560.

The previous prime is 22249337767. The next prime is 22249337779. The reversal of 22249337778 is 87773394222.

It is a happy number.

22249337778 is a `hidden beast` number, since 22 + 249 + 3 + 377 + 7 + 8 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 21981917169 + 267420609 = 148263^2 + 16353^2 .

It is not an unprimeable number, because it can be changed into a prime (22249337779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 226576 + ... + 309572.

Almost surely, 2^22249337778 is an apocalyptic number.

22249337778 is an abundant number, since it is smaller than the sum of its proper divisors (27042510438).

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

22249337778 is a wasteful number, since it uses less digits than its factorization.

22249337778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83339 (or 83336 counting only the distinct ones).

The product of its digits is 7112448, while the sum is 54.

The spelling of 22249337778 in words is "twenty-two billion, two hundred forty-nine million, three hundred thirty-seven thousand, seven hundred seventy-eight".