64542424546 has 8 divisors (see below), whose sum is σ = 98139851244. Its totient is φ = 31829140800.

The previous prime is 64542424517. The next prime is 64542424549.

64542424546 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 63784028025 + 758396521 = 252555^2 + 27539^2 .

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

It is a super-2 number, since 2×64542424546² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64542424496 and 64542424505.

It is not an unprimeable number, because it can be changed into a prime (64542424549) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 221035555 + ... + 221035846.

Almost surely, 2^64542424546 is an apocalyptic number.

64542424546 is a deficient number, since it is larger than the sum of its proper divisors (33597426698).

64542424546 is a wasteful number, since it uses less digits than its factorization.

64542424546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442071476.

The product of its digits is 3686400, while the sum is 46.

The spelling of 64542424546 in words is "sixty-four billion, five hundred forty-two million, four hundred twenty-four thousand, five hundred forty-six".