3685812563999 has 8 divisors (see below), whose sum is σ = 3769213614912. Its totient is φ = 3602924750880.

The previous prime is 3685812563981. The next prime is 3685812564023. The reversal of 3685812563999 is 9993652185863.

3685812563999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 3685812563999 - 2²⁰ = 3685811515423 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 (3685812563899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128294924 + ... + 128323649.

It is an arithmetic number, because the mean of its divisors is an integer number (471151701864).

Almost surely, 2^{3685812563999} is an apocalyptic number.

3685812563999 is a deficient number, since it is larger than the sum of its proper divisors (83401050913).

3685812563999 is a wasteful number, since it uses less digits than its factorization.

3685812563999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256618897.

The product of its digits is 755827200, while the sum is 74.

The spelling of 3685812563999 in words is "three trillion, six hundred eighty-five billion, eight hundred twelve million, five hundred sixty-three thousand, nine hundred ninety-nine".