64440359281002 has 8 divisors (see below), whose sum is σ = 128880718562016. Its totient is φ = 21480119760332.

The previous prime is 64440359280977. The next prime is 64440359281031. The reversal of 64440359281002 is 20018295304446.

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

64440359281002 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5370029940078 + ... + 5370029940089.

It is an arithmetic number, because the mean of its divisors is an integer number (16110089820252).

Almost surely, 2^{64440359281002} is an apocalyptic number.

64440359281002 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.

64440359281002 is a wasteful number, since it uses less digits than its factorization.

64440359281002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10740059880172.

The product of its (nonzero) digits is 1658880, while the sum is 48.

The spelling of 64440359281002 in words is "sixty-four trillion, four hundred forty billion, three hundred fifty-nine million, two hundred eighty-one thousand, two".