487122957509 has 4 divisors (see below), whose sum is σ = 487127744460. Its totient is φ = 487118170560.

The previous prime is 487122957493. The next prime is 487122957511. The reversal of 487122957509 is 905759221784.

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 285743702500 + 201379255009 = 534550^2 + 448753^2 .

It is a cyclic number.

It is not a de Polignac number, because 487122957509 - 2⁴ = 487122957493 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 (487122957569) 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, 2237444 + ... + 2445485.

It is an arithmetic number, because the mean of its divisors is an integer number (121781936115).

Almost surely, 2^487122957509 is an apocalyptic number.

It is an amenable number.

487122957509 is a deficient number, since it is larger than the sum of its proper divisors (4786951).

487122957509 is a wasteful number, since it uses less digits than its factorization.

487122957509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4786950.

The product of its (nonzero) digits is 12700800, while the sum is 59.

The spelling of 487122957509 in words is "four hundred eighty-seven billion, one hundred twenty-two million, nine hundred fifty-seven thousand, five hundred nine".