3851909648274 has 8 divisors (see below), whose sum is σ = 7703819296560. Its totient is φ = 1283969882756.

The previous prime is 3851909648273. The next prime is 3851909648291. The reversal of 3851909648274 is 4728469091583.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

3851909648274 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (3851909648273) 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, 320992470684 + ... + 320992470695.

It is an arithmetic number, because the mean of its divisors is an integer number (962977412070).

It is a 2-persistent number, because it is pandigital, and so is 2⋅3851909648274 = 7703819296548, but 3⋅3851909648274 = 11555728944822 is not.

Almost surely, 2^{3851909648274} is an apocalyptic number.

3851909648274 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3851909648274 is a wasteful number, since it uses less digits than its factorization.

3851909648274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641984941384.

The product of its (nonzero) digits is 104509440, while the sum is 66.

The spelling of 3851909648274 in words is "three trillion, eight hundred fifty-one billion, nine hundred nine million, six hundred forty-eight thousand, two hundred seventy-four".