7749938444 has 18 divisors (see below), whose sum is σ = 14407110900. Its totient is φ = 3647029312.

The previous prime is 7749938423. The next prime is 7749938479. The reversal of 7749938444 is 4448399477.

It is a happy number.

It is a super-2 number, since 2×7749938444² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 3350894 + ... + 3353205.

It is an arithmetic number, because the mean of its divisors is an integer number (800395050).

Almost surely, 2^7749938444 is an apocalyptic number.

It is an amenable number.

7749938444 is a deficient number, since it is larger than the sum of its proper divisors (6657172456).

7749938444 is a wasteful number, since it uses less digits than its factorization.

7749938444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6704137 (or 6704118 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 59.

The square root of 7749938444 is about 88033.7346930141. The cubic root of 7749938444 is about 1978.9405654290.

The spelling of 7749938444 in words is "seven billion, seven hundred forty-nine million, nine hundred thirty-eight thousand, four hundred forty-four".