64593627811 has 4 divisors (see below), whose sum is σ = 65319399000. Its totient is φ = 63867856624.

The previous prime is 64593627797. The next prime is 64593627821. The reversal of 64593627811 is 11872639546.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11872639546 = 2 ⋅5936319773.

It is a cyclic number.

It is not a de Polignac number, because 64593627811 - 2⁵ = 64593627779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64593627821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362885461 + ... + 362885638.

It is an arithmetic number, because the mean of its divisors is an integer number (16329849750).

Almost surely, 2^64593627811 is an apocalyptic number.

64593627811 is a deficient number, since it is larger than the sum of its proper divisors (725771189).

64593627811 is an equidigital number, since it uses as much as digits as its factorization.

64593627811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725771188.

The product of its digits is 2177280, while the sum is 52.

The spelling of 64593627811 in words is "sixty-four billion, five hundred ninety-three million, six hundred twenty-seven thousand, eight hundred eleven".