64534462511 has 4 divisors (see below), whose sum is σ = 65497663512. Its totient is φ = 63571261512.

The previous prime is 64534462481. The next prime is 64534462513. The reversal of 64534462511 is 11526443546.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64534462511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64534462513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481600400 + ... + 481600533.

It is an arithmetic number, because the mean of its divisors is an integer number (16374415878).

Almost surely, 2^64534462511 is an apocalyptic number.

64534462511 is a deficient number, since it is larger than the sum of its proper divisors (963201001).

64534462511 is an equidigital number, since it uses as much as digits as its factorization.

64534462511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963201000.

The product of its digits is 345600, while the sum is 41.

The spelling of 64534462511 in words is "sixty-four billion, five hundred thirty-four million, four hundred sixty-two thousand, five hundred eleven".