36668371728 has 80 divisors (see below), whose sum is σ = 96351797376. Its totient is φ = 12013393920.

The previous prime is 36668371721. The next prime is 36668371769. The reversal of 36668371728 is 82717386663.

It is not an unprimeable number, because it can be changed into a prime (36668371721) 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, 4701400 + ... + 4709192.

Almost surely, 2^36668371728 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 36668371728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48175898688).

36668371728 is an abundant number, since it is smaller than the sum of its proper divisors (59683425648).

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

36668371728 is a wasteful number, since it uses less digits than its factorization.

36668371728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9472 (or 9466 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 57.

The spelling of 36668371728 in words is "thirty-six billion, six hundred sixty-eight million, three hundred seventy-one thousand, seven hundred twenty-eight".