3612869736 has 128 divisors (see below), whose sum is σ = 10637568000. Its totient is φ = 1000933632.

The previous prime is 3612869723. The next prime is 3612869737. The reversal of 3612869736 is 6379682163.

3612869736 = 5624² + 5625² + ... + 5735².

It is not an unprimeable number, because it can be changed into a prime (3612869737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2230735 + ... + 2232353.

It is an arithmetic number, because the mean of its divisors is an integer number (83106000).

Almost surely, 2^3612869736 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 3612869736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5318784000).

3612869736 is an abundant number, since it is smaller than the sum of its proper divisors (7024698264).

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

3612869736 is a wasteful number, since it uses less digits than its factorization.

3612869736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2031 (or 2027 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 51.

The square root of 3612869736 is about 60107.1521201928. The cubic root of 3612869736 is about 1534.4430261131.

The spelling of 3612869736 in words is "three billion, six hundred twelve million, eight hundred sixty-nine thousand, seven hundred thirty-six".