8438876248647 has 32 divisors (see below), whose sum is σ = 12413291256576. Its totient is φ = 5066335123200.

The previous prime is 8438876248637. The next prime is 8438876248667. The reversal of 8438876248647 is 7468426788348.

It is a happy number.

It is not a de Polignac number, because 8438876248647 - 2²² = 8438872054343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8438876248637) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70492872 + ... + 70612482.

It is an arithmetic number, because the mean of its divisors is an integer number (387915351768).

Almost surely, 2^{8438876248647} is an apocalyptic number.

8438876248647 is a deficient number, since it is larger than the sum of its proper divisors (3974415007929).

8438876248647 is a wasteful number, since it uses less digits than its factorization.

8438876248647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163791.

The product of its digits is 2774532096, while the sum is 75.

The spelling of 8438876248647 in words is "eight trillion, four hundred thirty-eight billion, eight hundred seventy-six million, two hundred forty-eight thousand, six hundred forty-seven".