64354532441 has 8 divisors (see below), whose sum is σ = 64737309000. Its totient is φ = 63971880192.

The previous prime is 64354532413. The next prime is 64354532447. The reversal of 64354532441 is 14423545346.

It can be written as a sum of positive squares in 4 ways, for example, as 50488292416 + 13866240025 = 224696^2 + 117755^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64354532441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64354532447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1137185 + ... + 1192433.

It is an arithmetic number, because the mean of its divisors is an integer number (8092163625).

Almost surely, 2^64354532441 is an apocalyptic number.

It is an amenable number.

64354532441 is a deficient number, since it is larger than the sum of its proper divisors (382776559).

64354532441 is a wasteful number, since it uses less digits than its factorization.

64354532441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62155.

The product of its digits is 691200, while the sum is 41.

The spelling of 64354532441 in words is "sixty-four billion, three hundred fifty-four million, five hundred thirty-two thousand, four hundred forty-one".