3731611136 has 80 divisors (see below), whose sum is σ = 8237687040. Its totient is φ = 1674516480.

The previous prime is 3731611109. The next prime is 3731611151. The reversal of 3731611136 is 6311161373.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 440735 + ... + 449121.

It is an arithmetic number, because the mean of its divisors is an integer number (102971088).

Almost surely, 2^3731611136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3731611136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4118843520).

3731611136 is an abundant number, since it is smaller than the sum of its proper divisors (4506075904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3731611136 is an equidigital number, since it uses as much as digits as its factorization.

3731611136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8495 (or 8479 counting only the distinct ones).

The product of its digits is 6804, while the sum is 32.

The square root of 3731611136 is about 61086.9146053392. The cubic root of 3731611136 is about 1551.0726028510.

The spelling of 3731611136 in words is "three billion, seven hundred thirty-one million, six hundred eleven thousand, one hundred thirty-six".