487823621999 has 16 divisors (see below), whose sum is σ = 569248363008. Its totient is φ = 409366587552.

The previous prime is 487823621993. The next prime is 487823622023. The reversal of 487823621999 is 999126328784.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 487823621999 - 2¹² = 487823617903 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 (487823621993) 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, 1234547 + ... + 1581060.

It is an arithmetic number, because the mean of its divisors is an integer number (35578022688).

Almost surely, 2^487823621999 is an apocalyptic number.

487823621999 is a deficient number, since it is larger than the sum of its proper divisors (81424741009).

487823621999 is a wasteful number, since it uses less digits than its factorization.

487823621999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2816134.

The product of its digits is 94058496, while the sum is 68.

The spelling of 487823621999 in words is "four hundred eighty-seven billion, eight hundred twenty-three million, six hundred twenty-one thousand, nine hundred ninety-nine".