64533422433547 has 16 divisors (see below), whose sum is σ = 67875658670880. Its totient is φ = 61266327897600.

The previous prime is 64533422433511. The next prime is 64533422433553. The reversal of 64533422433547 is 74533422433546.

It is a cyclic number.

It is not a de Polignac number, because 64533422433547 - 2³¹ = 64531274949899 is a prime.

It is a super-2 number, since 2×64533422433547² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64533422463547) 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, 731358 + ... + 11384275.

It is an arithmetic number, because the mean of its divisors is an integer number (4242228666930).

Almost surely, 2^{64533422433547} is an apocalyptic number.

64533422433547 is a deficient number, since it is larger than the sum of its proper divisors (3342236237333).

64533422433547 is a wasteful number, since it uses less digits than its factorization.

64533422433547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12118734.

The product of its digits is 87091200, while the sum is 55.

Subtracting 64533422433547 from its reverse (74533422433546), we obtain a palindrome (9999999999999).

The spelling of 64533422433547 in words is "sixty-four trillion, five hundred thirty-three billion, four hundred twenty-two million, four hundred thirty-three thousand, five hundred forty-seven".