501326752065 has 32 divisors (see below), whose sum is σ = 849375144576. Its totient is φ = 251626030080.

The previous prime is 501326751983. The next prime is 501326752067. The reversal of 501326752065 is 560257623105.

It is not a de Polignac number, because 501326752065 - 2⁹ = 501326751553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (501326752067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3375675 + ... + 3521055.

It is an arithmetic number, because the mean of its divisors is an integer number (26542973268).

Almost surely, 2^501326752065 is an apocalyptic number.

It is an amenable number.

501326752065 is a deficient number, since it is larger than the sum of its proper divisors (348048392511).

501326752065 is a wasteful number, since it uses less digits than its factorization.

501326752065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158929.

The product of its (nonzero) digits is 378000, while the sum is 42.

The spelling of 501326752065 in words is "five hundred one billion, three hundred twenty-six million, seven hundred fifty-two thousand, sixty-five".