3874264845491 has 4 divisors (see below), whose sum is σ = 3874529839584. Its totient is φ = 3873999851400.

The previous prime is 3874264845469. The next prime is 3874264845557. The reversal of 3874264845491 is 1945484624783.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 3874264845491 - 2¹⁴ = 3874264829107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3874264848491) 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, 132475115 + ... + 132504356.

It is an arithmetic number, because the mean of its divisors is an integer number (968632459896).

Almost surely, 2^{3874264845491} is an apocalyptic number.

3874264845491 is a deficient number, since it is larger than the sum of its proper divisors (264994093).

3874264845491 is a wasteful number, since it uses less digits than its factorization.

3874264845491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264994092.

The product of its digits is 185794560, while the sum is 65.

The spelling of 3874264845491 in words is "three trillion, eight hundred seventy-four billion, two hundred sixty-four million, eight hundred forty-five thousand, four hundred ninety-one".