49392898989 has 16 divisors (see below), whose sum is σ = 75271795200. Its totient is φ = 28222104240.

The previous prime is 49392898979. The next prime is 49392899009. The reversal of 49392898989 is 98989829394.

It is a de Polignac number, because none of the positive numbers 2^k-49392898989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49392898939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168162 + ... + 356460.

It is an arithmetic number, because the mean of its divisors is an integer number (4704487200).

Almost surely, 2^49392898989 is an apocalyptic number.

It is an amenable number.

49392898989 is a deficient number, since it is larger than the sum of its proper divisors (25878896211).

49392898989 is a wasteful number, since it uses less digits than its factorization.

49392898989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200800.

The product of its digits is 725594112, while the sum is 78.

The spelling of 49392898989 in words is "forty-nine billion, three hundred ninety-two million, eight hundred ninety-eight thousand, nine hundred eighty-nine".