64700589671 has 2 divisors, whose sum is σ = 64700589672. Its totient is φ = 64700589670.

The previous prime is 64700589649. The next prime is 64700589739. The reversal of 64700589671 is 17698500746.

64700589671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64700589671 - 2⁶ = 64700589607 is a prime.

It is a super-2 number, since 2×64700589671² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64700589271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32350294835 + 32350294836.

It is an arithmetic number, because the mean of its divisors is an integer number (32350294836).

Almost surely, 2^64700589671 is an apocalyptic number.

64700589671 is a deficient number, since it is larger than the sum of its proper divisors (1).

64700589671 is an equidigital number, since it uses as much as digits as its factorization.

64700589671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2540160, while the sum is 53.

The spelling of 64700589671 in words is "sixty-four billion, seven hundred million, five hundred eighty-nine thousand, six hundred seventy-one".