648787567858 has 16 divisors (see below), whose sum is σ = 974025662400. Its totient is φ = 324112420656.

The previous prime is 648787567853. The next prime is 648787567873. The reversal of 648787567858 is 858765787846.

It is not an unprimeable number, because it can be changed into a prime (648787567853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24264885 + ... + 24291607.

It is an arithmetic number, because the mean of its divisors is an integer number (60876603900).

Almost surely, 2^648787567858 is an apocalyptic number.

648787567858 is a deficient number, since it is larger than the sum of its proper divisors (325238094542).

648787567858 is a wasteful number, since it uses less digits than its factorization.

648787567858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36801.

The product of its digits is 5057740800, while the sum is 79.

The spelling of 648787567858 in words is "six hundred forty-eight billion, seven hundred eighty-seven million, five hundred sixty-seven thousand, eight hundred fifty-eight".