64571075377 has 4 divisors (see below), whose sum is σ = 64657056256. Its totient is φ = 64485094500.

The previous prime is 64571075347. The next prime is 64571075417. The reversal of 64571075377 is 77357017546.

64571075377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64571075377 - 2⁷ = 64571075249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64571075347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42989313 + ... + 42990814.

It is an arithmetic number, because the mean of its divisors is an integer number (16164264064).

Almost surely, 2^64571075377 is an apocalyptic number.

It is an amenable number.

64571075377 is a deficient number, since it is larger than the sum of its proper divisors (85980879).

64571075377 is an equidigital number, since it uses as much as digits as its factorization.

64571075377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85980878.

The product of its (nonzero) digits is 4321800, while the sum is 52.

The spelling of 64571075377 in words is "sixty-four billion, five hundred seventy-one million, seventy-five thousand, three hundred seventy-seven".