501690413933 has 4 divisors (see below), whose sum is σ = 503501570940. Its totient is φ = 499879256928.

The previous prime is 501690413929. The next prime is 501690413953. The reversal of 501690413933 is 339314096105.

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

It can be written as a sum of positive squares in 2 ways, for example, as 143036752804 + 358653661129 = 378202^2 + 598877^2 .

It is a cyclic number.

It is not a de Polignac number, because 501690413933 - 2² = 501690413929 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 (501690413953) 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, 905578088 + ... + 905578641.

It is an arithmetic number, because the mean of its divisors is an integer number (125875392735).

Almost surely, 2^501690413933 is an apocalyptic number.

It is an amenable number.

501690413933 is a deficient number, since it is larger than the sum of its proper divisors (1811157007).

501690413933 is a wasteful number, since it uses less digits than its factorization.

501690413933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811157006.

The product of its (nonzero) digits is 262440, while the sum is 44.

The spelling of 501690413933 in words is "five hundred one billion, six hundred ninety million, four hundred thirteen thousand, nine hundred thirty-three".