64424222024442 has 32 divisors (see below), whose sum is σ = 148018345809792. Its totient is φ = 18311547930624.

The previous prime is 64424222024417. The next prime is 64424222024443. The reversal of 64424222024442 is 24442022242446.

It is a super-2 number, since 2×64424222024442² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 64424222024394 and 64424222024403.

It is not an unprimeable number, because it can be changed into a prime (64424222024443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3973852123 + ... + 3973868334.

It is an arithmetic number, because the mean of its divisors is an integer number (4625573306556).

Almost surely, 2^{64424222024442} is an apocalyptic number.

64424222024442 is an abundant number, since it is smaller than the sum of its proper divisors (83594123785350).

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

64424222024442 is a wasteful number, since it uses less digits than its factorization.

64424222024442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7947720662.

The product of its (nonzero) digits is 1572864, while the sum is 42.

Adding to 64424222024442 its reverse (24442022242446), we get a palindrome (88866244266888).

The spelling of 64424222024442 in words is "sixty-four trillion, four hundred twenty-four billion, two hundred twenty-two million, twenty-four thousand, four hundred forty-two".