7744172112 has 60 divisors (see below), whose sum is σ = 22947811380. Its totient is φ = 2429543424.

The previous prime is 7744172087. The next prime is 7744172119. The reversal of 7744172112 is 2112714477.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6097111056 + 1647061056 = 78084^2 + 40584^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7744172119) 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, 1579287 + ... + 1584182.

It is an arithmetic number, because the mean of its divisors is an integer number (382463523).

Almost surely, 2^7744172112 is an apocalyptic number.

7744172112 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

7744172112 is an abundant number, since it is smaller than the sum of its proper divisors (15203639268).

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

7744172112 is a wasteful number, since it uses less digits than its factorization.

7744172112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3163500 (or 3163491 counting only the distinct ones).

The product of its digits is 21952, while the sum is 36.

The square root of 7744172112 is about 88000.9779036574. The cubic root of 7744172112 is about 1978.4496342329.

Adding to 7744172112 its reverse (2112714477), we get a palindrome (9856886589).

The spelling of 7744172112 in words is "seven billion, seven hundred forty-four million, one hundred seventy-two thousand, one hundred twelve".