649111105859 has 16 divisors (see below), whose sum is σ = 703383183360. Its totient is φ = 596630966400.

The previous prime is 649111105823. The next prime is 649111105943. The reversal of 649111105859 is 958501111946.

It is not a de Polignac number, because 649111105859 - 2²⁴ = 649094328643 is a prime.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (649111105459) 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, 5082434 + ... + 5208584.

It is an arithmetic number, because the mean of its divisors is an integer number (43961448960).

Almost surely, 2^649111105859 is an apocalyptic number.

649111105859 is a deficient number, since it is larger than the sum of its proper divisors (54272077501).

649111105859 is a wasteful number, since it uses less digits than its factorization.

649111105859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133250.

The product of its (nonzero) digits is 388800, while the sum is 50.

The spelling of 649111105859 in words is "six hundred forty-nine billion, one hundred eleven million, one hundred five thousand, eight hundred fifty-nine".