36281668287 has 16 divisors (see below), whose sum is σ = 49307872608. Its totient is φ = 23721984000.

The previous prime is 36281668223. The next prime is 36281668301. The reversal of 36281668287 is 78286618263.

It is a happy number.

It is not a de Polignac number, because 36281668287 - 2⁶ = 36281668223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36281668207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 368287 + ... + 456287.

It is an arithmetic number, because the mean of its divisors is an integer number (3081742038).

Almost surely, 2^36281668287 is an apocalyptic number.

36281668287 is a deficient number, since it is larger than the sum of its proper divisors (13026204321).

36281668287 is a wasteful number, since it uses less digits than its factorization.

36281668287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90650.

The product of its digits is 9289728, while the sum is 57.

The spelling of 36281668287 in words is "thirty-six billion, two hundred eighty-one million, six hundred sixty-eight thousand, two hundred eighty-seven".