64642424022044 has 24 divisors (see below), whose sum is σ = 123420557769600. Its totient is φ = 29379992932080.

The previous prime is 64642424022023. The next prime is 64642424022047. The reversal of 64642424022044 is 44022042424646.

64642424022044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 64642424021986 and 64642424022004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64642424022047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72730214 + ... + 73613645.

It is an arithmetic number, because the mean of its divisors is an integer number (5142523240400).

Almost surely, 2^{64642424022044} is an apocalyptic number.

It is an amenable number.

64642424022044 is a deficient number, since it is larger than the sum of its proper divisors (58778133747556).

64642424022044 is a wasteful number, since it uses less digits than its factorization.

64642424022044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146353913 (or 146353911 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 44.

The spelling of 64642424022044 in words is "sixty-four trillion, six hundred forty-two billion, four hundred twenty-four million, twenty-two thousand, forty-four".