503916836641 has 3 divisors (see below), whose sum is σ = 503917546513. Its totient is φ = 503916126770.

The previous prime is 503916836629. The next prime is 503916836651. The reversal of 503916836641 is 146638619305.

The square root of 503916836641 is 709871.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 503916836641 - 2¹⁹ = 503916312353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503916836651) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 354936 + ... + 1064806.

Almost surely, 2^503916836641 is an apocalyptic number.

503916836641 is the 709871-st square number.

503916836641 is the 354936-th centered octagonal number.

It is an amenable number.

503916836641 is a deficient number, since it is larger than the sum of its proper divisors (709872).

503916836641 is an frugal number, since it uses more digits than its factorization.

503916836641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419742 (or 709871 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 52.

The spelling of 503916836641 in words is "five hundred three billion, nine hundred sixteen million, eight hundred thirty-six thousand, six hundred forty-one".