36640695388 has 24 divisors (see below), whose sum is σ = 73632021120. Its totient is φ = 15778289520.

The previous prime is 36640695383. The next prime is 36640695389. The reversal of 36640695388 is 88359604663.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36640695383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21913456 + ... + 21915127.

It is an arithmetic number, because the mean of its divisors is an integer number (3068000880).

Almost surely, 2^36640695388 is an apocalyptic number.

36640695388 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

36640695388 is an abundant number, since it is smaller than the sum of its proper divisors (36991325732).

36640695388 is a wasteful number, since it uses less digits than its factorization.

36640695388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43828617 (or 43828615 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 58.

The spelling of 36640695388 in words is "thirty-six billion, six hundred forty million, six hundred ninety-five thousand, three hundred eighty-eight".