49819091894 has 24 divisors (see below), whose sum is σ = 88275471192. Its totient is φ = 20903113920.

The previous prime is 49819091869. The next prime is 49819091929.

49819091894 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6695999 + ... + 6703434.

It is an arithmetic number, because the mean of its divisors is an integer number (3678144633).

Almost surely, 2^49819091894 is an apocalyptic number.

49819091894 is a deficient number, since it is larger than the sum of its proper divisors (38456379298).

49819091894 is a wasteful number, since it uses less digits than its factorization.

49819091894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13399472 (or 13399459 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 62.

The spelling of 49819091894 in words is "forty-nine billion, eight hundred nineteen million, ninety-one thousand, eight hundred ninety-four".