49686364866 has 16 divisors (see below), whose sum is σ = 100569992544. Its totient is φ = 16362577824.

The previous prime is 49686364817. The next prime is 49686364867. The reversal of 49686364866 is 66846368694.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 49686364797 and 49686364806.

It is not an unprimeable number, because it can be changed into a prime (49686364867) 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, 49885411 + ... + 49886406.

It is an arithmetic number, because the mean of its divisors is an integer number (6285624534).

Almost surely, 2^49686364866 is an apocalyptic number.

49686364866 is an abundant number, since it is smaller than the sum of its proper divisors (50883627678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49686364866 is a wasteful number, since it uses less digits than its factorization.

49686364866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99771905.

The product of its digits is 214990848, while the sum is 66.

The spelling of 49686364866 in words is "forty-nine billion, six hundred eighty-six million, three hundred sixty-four thousand, eight hundred sixty-six".