64020000277 has 4 divisors (see below), whose sum is σ = 64022999040. Its totient is φ = 64017001516.

The previous prime is 64020000257. The next prime is 64020000287. The reversal of 64020000277 is 77200002046.

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, and also an emirpimes, since its reverse is a distinct semiprime: 77200002046 = 2 ⋅38600001023.

It is a cyclic number.

It is not a de Polignac number, because 64020000277 - 2³⁵ = 29660261909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64020000217) 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, 1467127 + ... + 1510132.

It is an arithmetic number, because the mean of its divisors is an integer number (16005749760).

Almost surely, 2^64020000277 is an apocalyptic number.

It is an amenable number.

64020000277 is a deficient number, since it is larger than the sum of its proper divisors (2998763).

64020000277 is a wasteful number, since it uses less digits than its factorization.

64020000277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2998762.

The product of its (nonzero) digits is 4704, while the sum is 28.

The spelling of 64020000277 in words is "sixty-four billion, twenty million, two hundred seventy-seven", and thus it is an aban number.