503381864418643 has 32 divisors (see below), whose sum is σ = 611675747337600. Its totient is φ = 404395387453440.

The previous prime is 503381864418607. The next prime is 503381864418773. The reversal of 503381864418643 is 346814468183305.

It is a cyclic number.

It is not a de Polignac number, because 503381864418643 - 2³³ = 503373274484051 is a prime.

It is a super-2 number, since 2×503381864418643² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503381864418343) 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, 1449521155 + ... + 1449868387.

It is an arithmetic number, because the mean of its divisors is an integer number (19114867104300).

Almost surely, 2^{503381864418643} is an apocalyptic number.

503381864418643 is a deficient number, since it is larger than the sum of its proper divisors (108293882918957).

503381864418643 is a wasteful number, since it uses less digits than its factorization.

503381864418643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398047.

The product of its (nonzero) digits is 159252480, while the sum is 64.

The spelling of 503381864418643 in words is "five hundred three trillion, three hundred eighty-one billion, eight hundred sixty-four million, four hundred eighteen thousand, six hundred forty-three".