756736812 has 72 divisors (see below), whose sum is σ = 2068007760. Its totient is φ = 231937920.

The previous prime is 756736811. The next prime is 756736837. The reversal of 756736812 is 218637657.

756736812 is a `hidden beast` number, since 7 + 567 + 3 + 6 + 81 + 2 = 666.

756736812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (756736811) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122887 + ... + 128897.

It is an arithmetic number, because the mean of its divisors is an integer number (28722330).

Almost surely, 2^756736812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 756736812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1034003880).

756736812 is an abundant number, since it is smaller than the sum of its proper divisors (1311270948).

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

756736812 is a wasteful number, since it uses less digits than its factorization.

756736812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6303 (or 6298 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 756736812 is about 27508.8497033227. The cubic root of 756736812 is about 911.2725472132.

The spelling of 756736812 in words is "seven hundred fifty-six million, seven hundred thirty-six thousand, eight hundred twelve".