64882631247 has 16 divisors (see below), whose sum is σ = 98874201600. Its totient is φ = 37073752992.

The previous prime is 64882631237. The next prime is 64882631279. The reversal of 64882631247 is 74213628846.

It is not a de Polignac number, because 64882631247 - 2⁶ = 64882631183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64882631247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64882631237) 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, 361129 + ... + 510077.

It is an arithmetic number, because the mean of its divisors is an integer number (6179637600).

Almost surely, 2^64882631247 is an apocalyptic number.

64882631247 is a deficient number, since it is larger than the sum of its proper divisors (33991570353).

64882631247 is a wasteful number, since it uses less digits than its factorization.

64882631247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169702.

The product of its digits is 3096576, while the sum is 51.

The spelling of 64882631247 in words is "sixty-four billion, eight hundred eighty-two million, six hundred thirty-one thousand, two hundred forty-seven".