36431313212 has 72 divisors (see below), whose sum is σ = 76636038528. Its totient is φ = 15093993600.

The previous prime is 36431313211. The next prime is 36431313221. The reversal of 36431313212 is 21231313463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36431313211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7173218 + ... + 7178294.

It is an arithmetic number, because the mean of its divisors is an integer number (1064389424).

Almost surely, 2^36431313212 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 36431313212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38318019264).

36431313212 is an abundant number, since it is smaller than the sum of its proper divisors (40204725316).

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

36431313212 is a wasteful number, since it uses less digits than its factorization.

36431313212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6307 (or 6298 counting only the distinct ones).

The product of its digits is 7776, while the sum is 29.

Adding to 36431313212 its reverse (21231313463), we get a palindrome (57662626675).

The spelling of 36431313212 in words is "thirty-six billion, four hundred thirty-one million, three hundred thirteen thousand, two hundred twelve".