64250682889 has 2 divisors, whose sum is σ = 64250682890. Its totient is φ = 64250682888.

The previous prime is 64250682833. The next prime is 64250682901. The reversal of 64250682889 is 98828605246.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55881177664 + 8369505225 = 236392^2 + 91485^2 .

It is a cyclic number.

It is not a de Polignac number, because 64250682889 - 2²⁵ = 64217128457 is a prime.

It is not a weakly prime, because it can be changed into another prime (64254682889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32125341444 + 32125341445.

It is an arithmetic number, because the mean of its divisors is an integer number (32125341445).

Almost surely, 2^64250682889 is an apocalyptic number.

It is an amenable number.

64250682889 is a deficient number, since it is larger than the sum of its proper divisors (1).

64250682889 is an equidigital number, since it uses as much as digits as its factorization.

64250682889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13271040, while the sum is 58.

The spelling of 64250682889 in words is "sixty-four billion, two hundred fifty million, six hundred eighty-two thousand, eight hundred eighty-nine".