64215452521579 has 2 divisors, whose sum is σ = 64215452521580. Its totient is φ = 64215452521578.

The previous prime is 64215452521541. The next prime is 64215452521607. The reversal of 64215452521579 is 97512525451246.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64215452521579 is a prime.

It is not a weakly prime, because it can be changed into another prime (64215452521879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32107726260789 + 32107726260790.

It is an arithmetic number, because the mean of its divisors is an integer number (32107726260790).

Almost surely, 2^{64215452521579} is an apocalyptic number.

64215452521579 is a deficient number, since it is larger than the sum of its proper divisors (1).

64215452521579 is an equidigital number, since it uses as much as digits as its factorization.

64215452521579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240000, while the sum is 58.

The spelling of 64215452521579 in words is "sixty-four trillion, two hundred fifteen billion, four hundred fifty-two million, five hundred twenty-one thousand, five hundred seventy-nine".