36281680668 has 36 divisors (see below), whose sum is σ = 94190733000. Its totient is φ = 11767031136.

The previous prime is 36281680649. The next prime is 36281680703. The reversal of 36281680668 is 86608618263.

36281680668 is a `hidden beast` number, since 3 + 628 + 1 + 6 + 8 + 0 + 6 + 6 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13617918 + ... + 13620581.

It is an arithmetic number, because the mean of its divisors is an integer number (2616409250).

Almost surely, 2^36281680668 is an apocalyptic number.

It is an amenable number.

36281680668 is an abundant number, since it is smaller than the sum of its proper divisors (57909052332).

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

36281680668 is a wasteful number, since it uses less digits than its factorization.

36281680668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27238546 (or 27238541 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 54.

The spelling of 36281680668 in words is "thirty-six billion, two hundred eighty-one million, six hundred eighty thousand, six hundred sixty-eight".