64280272007 has 16 divisors (see below), whose sum is σ = 78110023680. Its totient is φ = 51639358848.

The previous prime is 64280271949. The next prime is 64280272073. The reversal of 64280272007 is 70027208246.

It is a happy number.

It is not a de Polignac number, because 64280272007 - 2¹⁸ = 64280009863 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 (64280274007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1101623 + ... + 1158504.

It is an arithmetic number, because the mean of its divisors is an integer number (4881876480).

Almost surely, 2^64280272007 is an apocalyptic number.

64280272007 is a deficient number, since it is larger than the sum of its proper divisors (13829751673).

64280272007 is a wasteful number, since it uses less digits than its factorization.

64280272007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2260390.

The product of its (nonzero) digits is 75264, while the sum is 38.

The spelling of 64280272007 in words is "sixty-four billion, two hundred eighty million, two hundred seventy-two thousand, seven".