64241557933 has 4 divisors (see below), whose sum is σ = 73418923360. Its totient is φ = 55064192508.

The previous prime is 64241557871. The next prime is 64241557937. The reversal of 64241557933 is 33975514246.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33975514246 = 2 ⋅16987757123.

It is a cyclic number.

It is not a de Polignac number, because 64241557933 - 2¹⁷ = 64241426861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64241557937) 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, 4588682703 + ... + 4588682716.

It is an arithmetic number, because the mean of its divisors is an integer number (18354730840).

Almost surely, 2^64241557933 is an apocalyptic number.

It is an amenable number.

64241557933 is a deficient number, since it is larger than the sum of its proper divisors (9177365427).

64241557933 is an equidigital number, since it uses as much as digits as its factorization.

64241557933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9177365426.

The product of its digits is 2721600, while the sum is 49.

The spelling of 64241557933 in words is "sixty-four billion, two hundred forty-one million, five hundred fifty-seven thousand, nine hundred thirty-three".