36451403018 has 4 divisors (see below), whose sum is σ = 54677104530. Its totient is φ = 18225701508.

The previous prime is 36451402973. The next prime is 36451403039. The reversal of 36451403018 is 81030415463.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81030415463 = 109 ⋅743398307.

It can be written as a sum of positive squares in only one way, i.e., 31608217369 + 4843185649 = 177787^2 + 69593^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9112850753 + ... + 9112850756.

Almost surely, 2^36451403018 is an apocalyptic number.

36451403018 is a deficient number, since it is larger than the sum of its proper divisors (18225701512).

36451403018 is a wasteful number, since it uses less digits than its factorization.

36451403018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18225701511.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 36451403018 in words is "thirty-six billion, four hundred fifty-one million, four hundred three thousand, eighteen".