7124723712 has 240 divisors, whose sum is σ = 22029707700. Its totient is φ = 2291466240.

The previous prime is 7124723701. The next prime is 7124723713. The reversal of 7124723712 is 2173274217.

It can be written as a sum of positive squares in 2 ways, for example, as 7120659456 + 4064256 = 84384^2 + 2016^2 .

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

It is not an unprimeable number, because it can be changed into a prime (7124723713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4810012 + ... + 4811492.

Almost surely, 2^7124723712 is an apocalyptic number.

7124723712 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7124723712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11014853850).

7124723712 is an abundant number, since it is smaller than the sum of its proper divisors (14904983988).

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

7124723712 is a wasteful number, since it uses less digits than its factorization.

7124723712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544 (or 1515 counting only the distinct ones).

The product of its digits is 32928, while the sum is 36.

The square root of 7124723712 is about 84408.0784759374. The cubic root of 7124723712 is about 1924.2256929267.

Adding to 7124723712 its reverse (2173274217), we get a palindrome (9297997929).

The spelling of 7124723712 in words is "seven billion, one hundred twenty-four million, seven hundred twenty-three thousand, seven hundred twelve".