3728185113 has 4 divisors (see below), whose sum is σ = 4970913488. Its totient is φ = 2485456740.

The previous prime is 3728185099. The next prime is 3728185127. The reversal of 3728185113 is 3115818273.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (3728185099) and next prime (3728185127).

It is not a de Polignac number, because 3728185113 - 2⁸ = 3728184857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3728185193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 621364183 + ... + 621364188.

It is an arithmetic number, because the mean of its divisors is an integer number (1242728372).

Almost surely, 2^3728185113 is an apocalyptic number.

It is an amenable number.

3728185113 is a deficient number, since it is larger than the sum of its proper divisors (1242728375).

3728185113 is a wasteful number, since it uses less digits than its factorization.

3728185113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242728374.

The product of its digits is 40320, while the sum is 39.

The square root of 3728185113 is about 61058.8659655582. The cubic root of 3728185113 is about 1550.5977733178.

The spelling of 3728185113 in words is "three billion, seven hundred twenty-eight million, one hundred eighty-five thousand, one hundred thirteen".