64354669571 has 2 divisors, whose sum is σ = 64354669572. Its totient is φ = 64354669570.

The previous prime is 64354669537. The next prime is 64354669633. The reversal of 64354669571 is 17596645346.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64354669571 - 2¹⁸ = 64354407427 is a prime.

It is not a weakly prime, because it can be changed into another prime (64354669271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32177334785 + 32177334786.

It is an arithmetic number, because the mean of its divisors is an integer number (32177334786).

Almost surely, 2^64354669571 is an apocalyptic number.

64354669571 is a deficient number, since it is larger than the sum of its proper divisors (1).

64354669571 is an equidigital number, since it uses as much as digits as its factorization.

64354669571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16329600, while the sum is 56.

The spelling of 64354669571 in words is "sixty-four billion, three hundred fifty-four million, six hundred sixty-nine thousand, five hundred seventy-one".