64957708811 has 2 divisors, whose sum is σ = 64957708812. Its totient is φ = 64957708810.

The previous prime is 64957708799. The next prime is 64957708843. The reversal of 64957708811 is 11880775946.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64957708811 is a prime.

It is not a weakly prime, because it can be changed into another prime (64957705811) 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, 32478854405 + 32478854406.

It is an arithmetic number, because the mean of its divisors is an integer number (32478854406).

Almost surely, 2^64957708811 is an apocalyptic number.

64957708811 is a deficient number, since it is larger than the sum of its proper divisors (1).

64957708811 is an equidigital number, since it uses as much as digits as its factorization.

64957708811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3386880, while the sum is 56.

The spelling of 64957708811 in words is "sixty-four billion, nine hundred fifty-seven million, seven hundred eight thousand, eight hundred eleven".