64424600441 has 4 divisors (see below), whose sum is σ = 64609198500. Its totient is φ = 64240002384.

The previous prime is 64424600437. The next prime is 64424600459. The reversal of 64424600441 is 14400642446.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54769572841 + 9655027600 = 234029^2 + 98260^2 .

It is a cyclic number.

It is not a de Polignac number, because 64424600441 - 2² = 64424600437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64424600411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92298506 + ... + 92299203.

It is an arithmetic number, because the mean of its divisors is an integer number (16152299625).

Almost surely, 2^64424600441 is an apocalyptic number.

It is an amenable number.

64424600441 is a deficient number, since it is larger than the sum of its proper divisors (184598059).

64424600441 is a wasteful number, since it uses less digits than its factorization.

64424600441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184598058.

The product of its (nonzero) digits is 73728, while the sum is 35.

The spelling of 64424600441 in words is "sixty-four billion, four hundred twenty-four million, six hundred thousand, four hundred forty-one".