3813874602591 has 4 divisors (see below), whose sum is σ = 5085166136792. Its totient is φ = 2542583068392.

The previous prime is 3813874602521. The next prime is 3813874602623. The reversal of 3813874602591 is 1952064783183.

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

It is not a de Polignac number, because 3813874602591 - 2¹⁰ = 3813874601567 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 (3813874602521) 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, 635645767096 + ... + 635645767101.

It is an arithmetic number, because the mean of its divisors is an integer number (1271291534198).

It is a 1-persistent number, because it is pandigital, but 2⋅3813874602591 = 7627749205182 is not.

Almost surely, 2^{3813874602591} is an apocalyptic number.

3813874602591 is a deficient number, since it is larger than the sum of its proper divisors (1271291534201).

3813874602591 is a wasteful number, since it uses less digits than its factorization.

3813874602591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271291534200.

The product of its (nonzero) digits is 8709120, while the sum is 57.

The spelling of 3813874602591 in words is "three trillion, eight hundred thirteen billion, eight hundred seventy-four million, six hundred two thousand, five hundred ninety-one".