504138140781 has 32 divisors (see below), whose sum is σ = 734806670976. Its totient is φ = 304907520000.

The previous prime is 504138140743. The next prime is 504138140791. The reversal of 504138140781 is 187041831405.

It is not a de Polignac number, because 504138140781 - 2⁶ = 504138140717 is a prime.

It is a super-2 number, since 2×504138140781² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504138140791) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86012791 + ... + 86018651.

It is an arithmetic number, because the mean of its divisors is an integer number (22962708468).

Almost surely, 2^504138140781 is an apocalyptic number.

It is an amenable number.

504138140781 is a deficient number, since it is larger than the sum of its proper divisors (230668530195).

504138140781 is a wasteful number, since it uses less digits than its factorization.

504138140781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10813.

The product of its (nonzero) digits is 107520, while the sum is 42.

The spelling of 504138140781 in words is "five hundred four billion, one hundred thirty-eight million, one hundred forty thousand, seven hundred eighty-one".