49998489994 has 4 divisors (see below), whose sum is σ = 74997734994. Its totient is φ = 24999244996.

The previous prime is 49998489991. The next prime is 49998490007.

49998489994 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 49790120769 + 208369225 = 223137^2 + 14435^2 .

It is not an unprimeable number, because it can be changed into a prime (49998489991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12499622497 + ... + 12499622500.

Almost surely, 2^49998489994 is an apocalyptic number.

49998489994 is a deficient number, since it is larger than the sum of its proper divisors (24999245000).

49998489994 is a wasteful number, since it uses less digits than its factorization.

49998489994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24999244999.

The product of its digits is 2176782336, while the sum is 82.

The spelling of 49998489994 in words is "forty-nine billion, nine hundred ninety-eight million, four hundred eighty-nine thousand, nine hundred ninety-four".