64204226687 has 2 divisors, whose sum is σ = 64204226688. Its totient is φ = 64204226686.

The previous prime is 64204226657. The next prime is 64204226701. The reversal of 64204226687 is 78662240246.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64204226687 - 2⁶ = 64204226623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64204226657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32102113343 + 32102113344.

It is an arithmetic number, because the mean of its divisors is an integer number (32102113344).

Almost surely, 2^64204226687 is an apocalyptic number.

64204226687 is a deficient number, since it is larger than the sum of its proper divisors (1).

64204226687 is an equidigital number, since it uses as much as digits as its factorization.

64204226687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1548288, while the sum is 47.

The spelling of 64204226687 in words is "sixty-four billion, two hundred four million, two hundred twenty-six thousand, six hundred eighty-seven".