36001990905 has 8 divisors (see below), whose sum is σ = 57603185472. Its totient is φ = 19201061808.

The previous prime is 36001990903. The next prime is 36001990961. The reversal of 36001990905 is 50909910063.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 36001990905 - 2¹ = 36001990903 is a prime.

It is a super-2 number, since 2×36001990905² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (36001990901) 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, 1200066349 + ... + 1200066378.

It is an arithmetic number, because the mean of its divisors is an integer number (7200398184).

Almost surely, 2^36001990905 is an apocalyptic number.

It is an amenable number.

36001990905 is a deficient number, since it is larger than the sum of its proper divisors (21601194567).

36001990905 is a wasteful number, since it uses less digits than its factorization.

36001990905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2400132735.

The product of its (nonzero) digits is 65610, while the sum is 42.

The spelling of 36001990905 in words is "thirty-six billion, one million, nine hundred ninety thousand, nine hundred five".