36685689612 has 48 divisors (see below), whose sum is σ = 100564972032. Its totient is φ = 10261730880.

The previous prime is 36685689559. The next prime is 36685689617. The reversal of 36685689612 is 21698658663.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (36685689617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10687588 + ... + 10691019.

It is an arithmetic number, because the mean of its divisors is an integer number (2095103584).

Almost surely, 2^36685689612 is an apocalyptic number.

It is an amenable number.

36685689612 is an abundant number, since it is smaller than the sum of its proper divisors (63879282420).

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

36685689612 is a wasteful number, since it uses less digits than its factorization.

36685689612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21378638 (or 21378636 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 60.

The spelling of 36685689612 in words is "thirty-six billion, six hundred eighty-five million, six hundred eighty-nine thousand, six hundred twelve".