3851344157 has 4 divisors (see below), whose sum is σ = 3851612220. Its totient is φ = 3851076096.

The previous prime is 3851344153. The next prime is 3851344199. The reversal of 3851344157 is 7514431583.

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

It can be written as a sum of positive squares in 2 ways, for example, as 460145401 + 3391198756 = 21451^2 + 58234^2 .

It is a cyclic number.

It is not a de Polignac number, because 3851344157 - 2² = 3851344153 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 (3851344151) 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, 111182 + ... + 141647.

It is an arithmetic number, because the mean of its divisors is an integer number (962903055).

Almost surely, 2^3851344157 is an apocalyptic number.

It is an amenable number.

3851344157 is a deficient number, since it is larger than the sum of its proper divisors (268063).

3851344157 is a wasteful number, since it uses less digits than its factorization.

3851344157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268062.

The product of its digits is 201600, while the sum is 41.

The square root of 3851344157 is about 62059.1988104906. The cubic root of 3851344157 is about 1567.4875846554.

The spelling of 3851344157 in words is "three billion, eight hundred fifty-one million, three hundred forty-four thousand, one hundred fifty-seven".