503920260399 has 4 divisors (see below), whose sum is σ = 671893680536. Its totient is φ = 335946840264.

The previous prime is 503920260383. The next prime is 503920260413. The reversal of 503920260399 is 993062029305.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 503920260399 - 2⁴ = 503920260383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503920260499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83986710064 + ... + 83986710069.

It is an arithmetic number, because the mean of its divisors is an integer number (167973420134).

Almost surely, 2^503920260399 is an apocalyptic number.

503920260399 is a deficient number, since it is larger than the sum of its proper divisors (167973420137).

503920260399 is a wasteful number, since it uses less digits than its factorization.

503920260399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167973420136.

The product of its (nonzero) digits is 787320, while the sum is 48.

The spelling of 503920260399 in words is "five hundred three billion, nine hundred twenty million, two hundred sixty thousand, three hundred ninety-nine".