400066732775 has 24 divisors (see below), whose sum is σ = 501058705488. Its totient is φ = 316854720000.

The previous prime is 400066732759. The next prime is 400066732799. The reversal of 400066732775 is 577237660004.

It is not a de Polignac number, because 400066732775 - 2⁴ = 400066732759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1233695 + ... + 1523855.

It is an arithmetic number, because the mean of its divisors is an integer number (20877446062).

Almost surely, 2^400066732775 is an apocalyptic number.

400066732775 is a deficient number, since it is larger than the sum of its proper divisors (100991972713).

400066732775 is a wasteful number, since it uses less digits than its factorization.

400066732775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290723 (or 290718 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 47.

The spelling of 400066732775 in words is "four hundred billion, sixty-six million, seven hundred thirty-two thousand, seven hundred seventy-five".