36420331986 has 24 divisors (see below), whose sum is σ = 78982695324. Its totient is φ = 12129037440.

The previous prime is 36420331951. The next prime is 36420332027. The reversal of 36420331986 is 68913302463.

36420331986 is a `hidden beast` number, since 3 + 6 + 420 + 33 + 198 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 35917451361 + 502880625 = 189519^2 + 22425^2 .

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 11 ways as a sum of consecutive naturals, for example, 902475 + ... + 941966.

Almost surely, 2^36420331986 is an apocalyptic number.

36420331986 is an abundant number, since it is smaller than the sum of its proper divisors (42562363338).

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

36420331986 is a wasteful number, since it uses less digits than its factorization.

36420331986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845546 (or 1845543 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The spelling of 36420331986 in words is "thirty-six billion, four hundred twenty million, three hundred thirty-one thousand, nine hundred eighty-six".