36806561913 has 32 divisors (see below), whose sum is σ = 54245376000. Its totient is φ = 22012099200.

The previous prime is 36806561893. The next prime is 36806561927. The reversal of 36806561913 is 31916560863.

It is not a de Polignac number, because 36806561913 - 2⁶ = 36806561849 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (36806561713) 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 31 ways as a sum of consecutive naturals, for example, 6752013 + ... + 6757461.

It is an arithmetic number, because the mean of its divisors is an integer number (1695168000).

Almost surely, 2^36806561913 is an apocalyptic number.

36806561913 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

36806561913 is a deficient number, since it is larger than the sum of its proper divisors (17438814087).

36806561913 is a wasteful number, since it uses less digits than its factorization.

36806561913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8133.

The product of its (nonzero) digits is 699840, while the sum is 48.

The spelling of 36806561913 in words is "thirty-six billion, eight hundred six million, five hundred sixty-one thousand, nine hundred thirteen".