64189925106 has 8 divisors (see below), whose sum is σ = 128379850224. Its totient is φ = 21396641700.

The previous prime is 64189925069. The next prime is 64189925141. The reversal of 64189925106 is 60152998146.

It is a sphenic number, since it is the product of 3 distinct primes.

64189925106 is an admirable number.

It is a super-2 number, since 2×64189925106² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5349160420 + ... + 5349160431.

It is an arithmetic number, because the mean of its divisors is an integer number (16047481278).

Almost surely, 2^64189925106 is an apocalyptic number.

64189925106 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64189925106 is a wasteful number, since it uses less digits than its factorization.

64189925106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10698320856.

The product of its (nonzero) digits is 933120, while the sum is 51.

The spelling of 64189925106 in words is "sixty-four billion, one hundred eighty-nine million, nine hundred twenty-five thousand, one hundred six".