63686890033 has 16 divisors (see below), whose sum is σ = 72717232896. Its totient is φ = 55255968000.

The previous prime is 63686890019. The next prime is 63686890093. The reversal of 63686890033 is 33009868636.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63686890033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63686890013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25891 + ... + 357832.

It is an arithmetic number, because the mean of its divisors is an integer number (4544827056).

Almost surely, 2^63686890033 is an apocalyptic number.

It is an amenable number.

63686890033 is a deficient number, since it is larger than the sum of its proper divisors (9030342863).

63686890033 is a wasteful number, since it uses less digits than its factorization.

63686890033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384504.

The product of its (nonzero) digits is 3359232, while the sum is 52.

The spelling of 63686890033 in words is "sixty-three billion, six hundred eighty-six million, eight hundred ninety thousand, thirty-three".