64530027686 has 16 divisors (see below), whose sum is σ = 98494143264. Its totient is φ = 31702008384.

The previous prime is 64530027641. The next prime is 64530027703. The reversal of 64530027686 is 68672003546.

It is a self number, because there is not a number n which added to its sum of digits gives 64530027686.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 801881 + ... + 878676.

It is an arithmetic number, because the mean of its divisors is an integer number (6155883954).

Almost surely, 2^64530027686 is an apocalyptic number.

64530027686 is a deficient number, since it is larger than the sum of its proper divisors (33964115578).

64530027686 is a wasteful number, since it uses less digits than its factorization.

64530027686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680895.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 64530027686 in words is "sixty-four billion, five hundred thirty million, twenty-seven thousand, six hundred eighty-six".