64889421728002 has 16 divisors (see below), whose sum is σ = 97440996989952. Its totient is φ = 32409091522080.

The previous prime is 64889421727961. The next prime is 64889421728071. The reversal of 64889421728002 is 20082712498846.

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, 62645727 + ... + 63673117.

It is an arithmetic number, because the mean of its divisors is an integer number (6090062311872).

Almost surely, 2^{64889421728002} is an apocalyptic number.

64889421728002 is a deficient number, since it is larger than the sum of its proper divisors (32551575261950).

64889421728002 is a wasteful number, since it uses less digits than its factorization.

64889421728002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062033.

The product of its (nonzero) digits is 24772608, while the sum is 61.

The spelling of 64889421728002 in words is "sixty-four trillion, eight hundred eighty-nine billion, four hundred twenty-one million, seven hundred twenty-eight thousand, two".