36899206525440 has 640 divisors, whose sum is σ = 158604607941120. Its totient is φ = 7937978793984.

The previous prime is 36899206525397. The next prime is 36899206525453. The reversal of 36899206525440 is 4452560299863.

It is a happy number.

36899206525440 is a `hidden beast` number, since 3 + 6 + 8 + 9 + 9 + 20 + 65 + 2 + 544 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5982244 + ... + 10468316.

It is an arithmetic number, because the mean of its divisors is an integer number (247819699908).

Almost surely, 2^{36899206525440} is an apocalyptic number.

36899206525440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36899206525440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79302303970560).

36899206525440 is an abundant number, since it is smaller than the sum of its proper divisors (121705401415680).

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

36899206525440 is a wasteful number, since it uses less digits than its factorization.

36899206525440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4486129 (or 4486107 counting only the distinct ones).

The product of its (nonzero) digits is 111974400, while the sum is 63.

The spelling of 36899206525440 in words is "thirty-six trillion, eight hundred ninety-nine billion, two hundred six million, five hundred twenty-five thousand, four hundred forty".