485509905137 has 4 divisors (see below), whose sum is σ = 493738886640. Its totient is φ = 477280923636.

The previous prime is 485509905131. The next prime is 485509905151. The reversal of 485509905137 is 731509905584.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 485509905137 - 2¹⁴ = 485509888753 is a prime.

It is a super-3 number, since 3×485509905137³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (485509905131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4114490663 + ... + 4114490780.

It is an arithmetic number, because the mean of its divisors is an integer number (123434721660).

Almost surely, 2^485509905137 is an apocalyptic number.

It is an amenable number.

485509905137 is a deficient number, since it is larger than the sum of its proper divisors (8228981503).

485509905137 is an equidigital number, since it uses as much as digits as its factorization.

485509905137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8228981502.

The product of its (nonzero) digits is 6804000, while the sum is 56.

The spelling of 485509905137 in words is "four hundred eighty-five billion, five hundred nine million, nine hundred five thousand, one hundred thirty-seven".