3851138474 has 4 divisors (see below), whose sum is σ = 5776707714. Its totient is φ = 1925569236.

The previous prime is 3851138471. The next prime is 3851138563. The reversal of 3851138474 is 4748311583.

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

It can be written as a sum of positive squares in only one way, i.e., 2027250625 + 1823887849 = 45025^2 + 42707^2 .

It is not an unprimeable number, because it can be changed into a prime (3851138471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 962784617 + ... + 962784620.

Almost surely, 2^3851138474 is an apocalyptic number.

3851138474 is a deficient number, since it is larger than the sum of its proper divisors (1925569240).

3851138474 is a wasteful number, since it uses less digits than its factorization.

3851138474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925569239.

The product of its digits is 322560, while the sum is 44.

The square root of 3851138474 is about 62057.5416367745. The cubic root of 3851138474 is about 1567.4596800006.

The spelling of 3851138474 in words is "three billion, eight hundred fifty-one million, one hundred thirty-eight thousand, four hundred seventy-four".