3801116591 has 4 divisors (see below), whose sum is σ = 3801717192. Its totient is φ = 3800515992.

The previous prime is 3801116569. The next prime is 3801116629. The reversal of 3801116591 is 1956111083.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3801116591 is a prime.

It is a super-2 number, since 2×3801116591² = 28896974676750922562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3801016591) 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, 290705 + ... + 303498.

It is an arithmetic number, because the mean of its divisors is an integer number (950429298).

Almost surely, 2^3801116591 is an apocalyptic number.

3801116591 is a deficient number, since it is larger than the sum of its proper divisors (600601).

3801116591 is an equidigital number, since it uses as much as digits as its factorization.

3801116591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600600.

The product of its (nonzero) digits is 6480, while the sum is 35.

The square root of 3801116591 is about 61653.1961134214. The cubic root of 3801116591 is about 1560.6435804702.

The spelling of 3801116591 in words is "three billion, eight hundred one million, one hundred sixteen thousand, five hundred ninety-one".