509141827731 has 16 divisors (see below), whose sum is σ = 679963767680. Its totient is φ = 338874036480.

The previous prime is 509141827729. The next prime is 509141827771. The reversal of 509141827731 is 137728141905.

It is not a de Polignac number, because 509141827731 - 2¹ = 509141827729 is a prime.

It is a super-2 number, since 2×509141827731² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (509141827771) 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, 18340860 + ... + 18368598.

It is an arithmetic number, because the mean of its divisors is an integer number (42497735480).

Almost surely, 2^509141827731 is an apocalyptic number.

509141827731 is a deficient number, since it is larger than the sum of its proper divisors (170821939949).

509141827731 is a wasteful number, since it uses less digits than its factorization.

509141827731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37506.

The product of its (nonzero) digits is 423360, while the sum is 48.

The spelling of 509141827731 in words is "five hundred nine billion, one hundred forty-one million, eight hundred twenty-seven thousand, seven hundred thirty-one".