3749872865 has 16 divisors (see below), whose sum is σ = 4545324288. Its totient is φ = 2969726976.

The previous prime is 3749872843. The next prime is 3749872877. The reversal of 3749872865 is 5682789473.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3749872865 - 2¹⁰ = 3749871841 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200504 + ... + 218406.

It is an arithmetic number, because the mean of its divisors is an integer number (284082768).

Almost surely, 2^3749872865 is an apocalyptic number.

It is an amenable number.

3749872865 is a deficient number, since it is larger than the sum of its proper divisors (795451423).

3749872865 is a wasteful number, since it uses less digits than its factorization.

3749872865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18328.

The product of its digits is 20321280, while the sum is 59.

The square root of 3749872865 is about 61236.2055078530. The cubic root of 3749872865 is about 1553.5986955339.

The spelling of 3749872865 in words is "three billion, seven hundred forty-nine million, eight hundred seventy-two thousand, eight hundred sixty-five".