22449185739 has 12 divisors (see below), whose sum is σ = 32432171616. Its totient is φ = 14963553072.

The previous prime is 22449185723. The next prime is 22449185743. The reversal of 22449185739 is 93758194422.

22449185739 is a `hidden beast` number, since 2 + 2 + 4 + 491 + 85 + 73 + 9 = 666.

It is not a de Polignac number, because 22449185739 - 2⁴ = 22449185723 is a prime.

It is a super-2 number, since 2×22449185739² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22449185749) 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, 158152 + ... + 264405.

It is an arithmetic number, because the mean of its divisors is an integer number (2702680968).

Almost surely, 2^22449185739 is an apocalyptic number.

22449185739 is a deficient number, since it is larger than the sum of its proper divisors (9982985877).

22449185739 is a wasteful number, since it uses less digits than its factorization.

22449185739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428466 (or 428463 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The spelling of 22449185739 in words is "twenty-two billion, four hundred forty-nine million, one hundred eighty-five thousand, seven hundred thirty-nine".