64002623244 has 24 divisors (see below), whose sum is σ = 170673662208. Its totient is φ = 18286463760.

The previous prime is 64002623221. The next prime is 64002623327. The reversal of 64002623244 is 44232620046.

It is a super-2 number, since 2×64002623244² (a number of 22 digits) contains 22 as substring.

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, 380967912 + ... + 380968079.

It is an arithmetic number, because the mean of its divisors is an integer number (7111402592).

Almost surely, 2^64002623244 is an apocalyptic number.

It is an amenable number.

64002623244 is an abundant number, since it is smaller than the sum of its proper divisors (106671038964).

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

64002623244 is a wasteful number, since it uses less digits than its factorization.

64002623244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761936005 (or 761936003 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 33.

The spelling of 64002623244 in words is "sixty-four billion, two million, six hundred twenty-three thousand, two hundred forty-four".