64714889887 has 2 divisors, whose sum is σ = 64714889888. Its totient is φ = 64714889886.

The previous prime is 64714889881. The next prime is 64714889917. The reversal of 64714889887 is 78898841746.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64714889887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64714889881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32357444943 + 32357444944.

It is an arithmetic number, because the mean of its divisors is an integer number (32357444944).

Almost surely, 2^64714889887 is an apocalyptic number.

64714889887 is a deficient number, since it is larger than the sum of its proper divisors (1).

64714889887 is an equidigital number, since it uses as much as digits as its factorization.

64714889887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 173408256, while the sum is 70.

The spelling of 64714889887 in words is "sixty-four billion, seven hundred fourteen million, eight hundred eighty-nine thousand, eight hundred eighty-seven".