64861958299 has 2 divisors, whose sum is σ = 64861958300. Its totient is φ = 64861958298.

The previous prime is 64861958269. The next prime is 64861958323. The reversal of 64861958299 is 99285916846.

64861958299 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64861958299 - 2⁵ = 64861958267 is a prime.

It is not a weakly prime, because it can be changed into another prime (64861958269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32430979149 + 32430979150.

It is an arithmetic number, because the mean of its divisors is an integer number (32430979150).

Almost surely, 2^64861958299 is an apocalyptic number.

64861958299 is a deficient number, since it is larger than the sum of its proper divisors (1).

64861958299 is an equidigital number, since it uses as much as digits as its factorization.

64861958299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67184640, while the sum is 67.

The spelling of 64861958299 in words is "sixty-four billion, eight hundred sixty-one million, nine hundred fifty-eight thousand, two hundred ninety-nine".