3985524803801 has 4 divisors (see below), whose sum is σ = 3985536927504. Its totient is φ = 3985512680100.

The previous prime is 3985524803779. The next prime is 3985524803833. The reversal of 3985524803801 is 1083084255893.

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 3985524803801 - 2²⁶ = 3985457694937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3985524808801) 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, 5554595 + ... + 6230936.

It is an arithmetic number, because the mean of its divisors is an integer number (996384231876).

Almost surely, 2^{3985524803801} is an apocalyptic number.

It is an amenable number.

3985524803801 is a deficient number, since it is larger than the sum of its proper divisors (12123703).

3985524803801 is a wasteful number, since it uses less digits than its factorization.

3985524803801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12123702.

The product of its (nonzero) digits is 8294400, while the sum is 56.

The spelling of 3985524803801 in words is "three trillion, nine hundred eighty-five billion, five hundred twenty-four million, eight hundred three thousand, eight hundred one".