64304004691 has 2 divisors, whose sum is σ = 64304004692. Its totient is φ = 64304004690.

The previous prime is 64304004641. The next prime is 64304004703. The reversal of 64304004691 is 19640040346.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64304004691 - 2¹⁹ = 64303480403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64304004691.

It is not a weakly prime, because it can be changed into another prime (64304004641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32152002345 + 32152002346.

It is an arithmetic number, because the mean of its divisors is an integer number (32152002346).

Almost surely, 2^64304004691 is an apocalyptic number.

64304004691 is a deficient number, since it is larger than the sum of its proper divisors (1).

64304004691 is an equidigital number, since it uses as much as digits as its factorization.

64304004691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 37.

The spelling of 64304004691 in words is "sixty-four billion, three hundred four million, four thousand, six hundred ninety-one".