504245436221645 has 8 divisors (see below), whose sum is σ = 605193703067160. Its totient is φ = 403330229243200.

The previous prime is 504245436221633. The next prime is 504245436221713. The reversal of 504245436221645 is 546122634542405.

It can be written as a sum of positive squares in 4 ways, for example, as 61434083881 + 504184002137764 = 247859^2 + 22454042^2 .

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

It is not a de Polignac number, because 504245436221645 - 2³⁰ = 504244362479821 is a prime.

It is a super-3 number, since 3×504245436221645³ (a number of 45 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8264933210 + ... + 8264994219.

It is an arithmetic number, because the mean of its divisors is an integer number (75649212883395).

Almost surely, 2^{504245436221645} is an apocalyptic number.

It is an amenable number.

504245436221645 is a deficient number, since it is larger than the sum of its proper divisors (100948266845515).

504245436221645 is a wasteful number, since it uses less digits than its factorization.

504245436221645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16529933535.

The product of its (nonzero) digits is 27648000, while the sum is 53.

The spelling of 504245436221645 in words is "five hundred four trillion, two hundred forty-five billion, four hundred thirty-six million, two hundred twenty-one thousand, six hundred forty-five".