36091261018 has 48 divisors (see below), whose sum is σ = 59958755064. Its totient is φ = 16234803200.

The previous prime is 36091261009. The next prime is 36091261057. The reversal of 36091261018 is 81016219063.

It can be written as a sum of positive squares in 12 ways, for example, as 21262597489 + 14828663529 = 145817^2 + 121773^2 .

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2881746 + ... + 2894242.

Almost surely, 2^36091261018 is an apocalyptic number.

36091261018 is a deficient number, since it is larger than the sum of its proper divisors (23867494046).

36091261018 is a wasteful number, since it uses less digits than its factorization.

36091261018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12675 (or 12646 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The spelling of 36091261018 in words is "thirty-six billion, ninety-one million, two hundred sixty-one thousand, eighteen".