3858123172 has 12 divisors (see below), whose sum is σ = 6760639900. Its totient is φ = 1926511776.

The previous prime is 3858123131. The next prime is 3858123239. The reversal of 3858123172 is 2713218583.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1864857856 + 1993265316 = 43184^2 + 44646^2 .

It is a super-2 number, since 2×3858123172² = 29770228820646683168, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634047 + ... + 640102.

Almost surely, 2^3858123172 is an apocalyptic number.

It is an amenable number.

3858123172 is a deficient number, since it is larger than the sum of its proper divisors (2902516728).

3858123172 is a wasteful number, since it uses less digits than its factorization.

3858123172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274910 (or 1274908 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 3858123172 is about 62113.7921238110. The cubic root of 3858123172 is about 1568.4067263867.

The spelling of 3858123172 in words is "three billion, eight hundred fifty-eight million, one hundred twenty-three thousand, one hundred seventy-two".