485687981500 has 24 divisors (see below), whose sum is σ = 1060742552688. Its totient is φ = 194275192400.

The previous prime is 485687981371. The next prime is 485687981543. The reversal of 485687981500 is 5189786584.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 485687482 + ... + 485688481.

It is an arithmetic number, because the mean of its divisors is an integer number (44197606362).

Almost surely, 2^485687981500 is an apocalyptic number.

It is an amenable number.

485687981500 is an abundant number, since it is smaller than the sum of its proper divisors (575054571188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

485687981500 is a wasteful number, since it uses less digits than its factorization.

485687981500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971375982 (or 971375970 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 61.

The spelling of 485687981500 in words is "four hundred eighty-five billion, six hundred eighty-seven million, nine hundred eighty-one thousand, five hundred".