756400755 has 16 divisors (see below), whose sum is σ = 1320263424. Its totient is φ = 366739680.

The previous prime is 756400753. The next prime is 756400783. The reversal of 756400755 is 557004657.

756400755 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 756400755 - 2¹ = 756400753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (756400753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2291959 + ... + 2292288.

It is an arithmetic number, because the mean of its divisors is an integer number (82516464).

Almost surely, 2^756400755 is an apocalyptic number.

756400755 is a deficient number, since it is larger than the sum of its proper divisors (563862669).

756400755 is a wasteful number, since it uses less digits than its factorization.

756400755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4584266.

The product of its (nonzero) digits is 147000, while the sum is 39.

The square root of 756400755 is about 27502.7408634121. The cubic root of 756400755 is about 911.1376324682.

The spelling of 756400755 in words is "seven hundred fifty-six million, four hundred thousand, seven hundred fifty-five".