36801815049 has 16 divisors (see below), whose sum is σ = 54536087040. Its totient is φ = 24527847600.

The previous prime is 36801815047. The next prime is 36801815053. The reversal of 36801815049 is 94051810863.

36801815049 is a `hidden beast` number, since 3 + 68 + 0 + 1 + 81 + 504 + 9 = 666.

It is not a de Polignac number, because 36801815049 - 2¹ = 36801815047 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 36801814995 and 36801815013.

It is not an unprimeable number, because it can be changed into a prime (36801815041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84217 + ... + 284070.

It is an arithmetic number, because the mean of its divisors is an integer number (3408505440).

Almost surely, 2^36801815049 is an apocalyptic number.

It is an amenable number.

36801815049 is a deficient number, since it is larger than the sum of its proper divisors (17734271991).

36801815049 is a wasteful number, since it uses less digits than its factorization.

36801815049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371997 (or 371991 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 36801815049 in words is "thirty-six billion, eight hundred one million, eight hundred fifteen thousand, forty-nine".