64884389092 has 24 divisors (see below), whose sum is σ = 114316542144. Its totient is φ = 32222823072.

The previous prime is 64884389071. The next prime is 64884389113. The reversal of 64884389092 is 29098348846.

It is an interprime number because it is at equal distance from previous prime (64884389071) and next prime (64884389113).

It is a self number, because there is not a number n which added to its sum of digits gives 64884389092.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835918 + ... + 910234.

It is an arithmetic number, because the mean of its divisors is an integer number (4763189256).

Almost surely, 2^64884389092 is an apocalyptic number.

It is an amenable number.

64884389092 is a deficient number, since it is larger than the sum of its proper divisors (49432153052).

64884389092 is a wasteful number, since it uses less digits than its factorization.

64884389092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75795 (or 75793 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 61.

The spelling of 64884389092 in words is "sixty-four billion, eight hundred eighty-four million, three hundred eighty-nine thousand, ninety-two".