3865974246139 has 4 divisors (see below), whose sum is σ = 3888320918256. Its totient is φ = 3843627574024.

The previous prime is 3865974246109. The next prime is 3865974246187. The reversal of 3865974246139 is 9316424795683.

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 3865974246139 - 2⁴¹ = 1666950990587 is a prime.

It is a super-3 number, since 3×3865974246139³ (a number of 39 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3865974246109) 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, 11173335799 + ... + 11173336144.

It is an arithmetic number, because the mean of its divisors is an integer number (972080229564).

Almost surely, 2^{3865974246139} is an apocalyptic number.

3865974246139 is a deficient number, since it is larger than the sum of its proper divisors (22346672117).

3865974246139 is a wasteful number, since it uses less digits than its factorization.

3865974246139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22346672116.

The product of its digits is 235146240, while the sum is 67.

The spelling of 3865974246139 in words is "three trillion, eight hundred sixty-five billion, nine hundred seventy-four million, two hundred forty-six thousand, one hundred thirty-nine".