648880870047 has 4 divisors (see below), whose sum is σ = 865174493400. Its totient is φ = 432587246696.

The previous prime is 648880870019. The next prime is 648880870097. The reversal of 648880870047 is 740078088846.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 648880870047 - 2³⁹ = 99125056159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648880870097) 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, 108146811672 + ... + 108146811677.

It is an arithmetic number, because the mean of its divisors is an integer number (216293623350).

Almost surely, 2^648880870047 is an apocalyptic number.

648880870047 is a deficient number, since it is larger than the sum of its proper divisors (216293623353).

648880870047 is a wasteful number, since it uses less digits than its factorization.

648880870047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216293623352.

The product of its (nonzero) digits is 19267584, while the sum is 60.

The spelling of 648880870047 in words is "six hundred forty-eight billion, eight hundred eighty million, eight hundred seventy thousand, forty-seven".