64579433611 has 8 divisors (see below), whose sum is σ = 80514618624. Its totient is φ = 50321636520.

The previous prime is 64579433591. The next prime is 64579433671. The reversal of 64579433611 is 11633497546.

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

It is a cyclic number.

It is not a de Polignac number, because 64579433611 - 2¹⁷ = 64579302539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64579433671) 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, 419346895 + ... + 419347048.

It is an arithmetic number, because the mean of its divisors is an integer number (10064327328).

Almost surely, 2^64579433611 is an apocalyptic number.

64579433611 is a deficient number, since it is larger than the sum of its proper divisors (15935185013).

64579433611 is a wasteful number, since it uses less digits than its factorization.

64579433611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838693961.

The product of its digits is 1632960, while the sum is 49.

The spelling of 64579433611 in words is "sixty-four billion, five hundred seventy-nine million, four hundred thirty-three thousand, six hundred eleven".