3874237857 has 20 divisors (see below), whose sum is σ = 6614220096. Its totient is φ = 2213849880.

The previous prime is 3874237853. The next prime is 3874237859. The reversal of 3874237857 is 7587324783.

It is a happy number.

It is not a de Polignac number, because 3874237857 - 2² = 3874237853 is a prime.

It is a super-2 number, since 2×3874237857² = 30019437945223904898, which contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (3874237853) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 3415869 + ... + 3417002.

Almost surely, 2^3874237857 is an apocalyptic number.

It is an amenable number.

3874237857 is a deficient number, since it is larger than the sum of its proper divisors (2739982239).

3874237857 is an equidigital number, since it uses as much as digits as its factorization.

3874237857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6832890 (or 6832881 counting only the distinct ones).

The product of its digits is 7902720, while the sum is 54.

The square root of 3874237857 is about 62243.3760090180. The cubic root of 3874237857 is about 1570.5873439051.

The spelling of 3874237857 in words is "three billion, eight hundred seventy-four million, two hundred thirty-seven thousand, eight hundred fifty-seven".