503891538913 has 8 divisors (see below), whose sum is σ = 576151996032. Its totient is φ = 431700069696.

The previous prime is 503891538911. The next prime is 503891538919. The reversal of 503891538913 is 319835198305.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 503891538913 - 2¹ = 503891538911 is a prime.

It is a super-2 number, since 2×503891538913² (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 (503891538911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17231320 + ... + 17260537.

It is an arithmetic number, because the mean of its divisors is an integer number (72018999504).

Almost surely, 2^503891538913 is an apocalyptic number.

It is an amenable number.

503891538913 is a deficient number, since it is larger than the sum of its proper divisors (72260457119).

503891538913 is a wasteful number, since it uses less digits than its factorization.

503891538913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34493951.

The product of its (nonzero) digits is 3499200, while the sum is 55.

The spelling of 503891538913 in words is "five hundred three billion, eight hundred ninety-one million, five hundred thirty-eight thousand, nine hundred thirteen".