64545019326899 has 8 divisors (see below), whose sum is σ = 65055650987520. Its totient is φ = 64034425215936.

The previous prime is 64545019326883. The next prime is 64545019326901. The reversal of 64545019326899 is 99862391054546.

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

It is a cyclic number.

It is not a de Polignac number, because 64545019326899 - 2⁴ = 64545019326883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64545019326199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5930954 + ... + 12816639.

It is an arithmetic number, because the mean of its divisors is an integer number (8131956373440).

Almost surely, 2^{64545019326899} is an apocalyptic number.

64545019326899 is a deficient number, since it is larger than the sum of its proper divisors (510631660621).

64545019326899 is a wasteful number, since it uses less digits than its factorization.

64545019326899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18774829.

The product of its (nonzero) digits is 503884800, while the sum is 71.

The spelling of 64545019326899 in words is "sixty-four trillion, five hundred forty-five billion, nineteen million, three hundred twenty-six thousand, eight hundred ninety-nine".