501713644261 has 16 divisors (see below), whose sum is σ = 525598222464. Its totient is φ = 478002849984.

The previous prime is 501713644093. The next prime is 501713644309. The reversal of 501713644261 is 162446317105.

It is not a de Polignac number, because 501713644261 - 2²⁵ = 501680089829 is a prime.

It is a super-2 number, since 2×501713644261² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501713645261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21056991 + ... + 21080803.

It is an arithmetic number, because the mean of its divisors is an integer number (32849888904).

Almost surely, 2^501713644261 is an apocalyptic number.

It is an amenable number.

501713644261 is a deficient number, since it is larger than the sum of its proper divisors (23884578203).

501713644261 is a wasteful number, since it uses less digits than its factorization.

501713644261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27420.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 501713644261 in words is "five hundred one billion, seven hundred thirteen million, six hundred forty-four thousand, two hundred sixty-one".