49999999906 has 8 divisors (see below), whose sum is σ = 75113810640. Its totient is φ = 24962063028.

The previous prime is 49999999867. The next prime is 49999999957. The reversal of 49999999906 is 60999999994.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 49999999906.

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 3 ways as a sum of consecutive naturals, for example, 18966816 + ... + 18969451.

It is an arithmetic number, because the mean of its divisors is an integer number (9389226330).

Almost surely, 2^49999999906 is an apocalyptic number.

49999999906 is a deficient number, since it is larger than the sum of its proper divisors (25113810734).

49999999906 is a wasteful number, since it uses less digits than its factorization.

49999999906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37936928.

The product of its (nonzero) digits is 1033121304, while the sum is 82.

The spelling of 49999999906 in words is "forty-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred six".