49699968016686 has 16 divisors (see below), whose sum is σ = 107046084959184. Its totient is φ = 15292297851264.

The previous prime is 49699968016679. The next prime is 49699968016703. The reversal of 49699968016686 is 68661086999694.

It is a happy number.

49699968016686 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×49699968016686² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318589538491 + ... + 318589538646.

It is an arithmetic number, because the mean of its divisors is an integer number (6690380309949).

Almost surely, 2^{49699968016686} is an apocalyptic number.

49699968016686 is an abundant number, since it is smaller than the sum of its proper divisors (57346116942498).

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

49699968016686 is a wasteful number, since it uses less digits than its factorization.

49699968016686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637179077155.

The product of its (nonzero) digits is 13060694016, while the sum is 87.

The spelling of 49699968016686 in words is "forty-nine trillion, six hundred ninety-nine billion, nine hundred sixty-eight million, sixteen thousand, six hundred eighty-six".