49391575189 has 16 divisors (see below), whose sum is σ = 56669289984. Its totient is φ = 42633115200.

The previous prime is 49391575187. The next prime is 49391575201. The reversal of 49391575189 is 98157519394.

It is not a de Polignac number, because 49391575189 - 2¹ = 49391575187 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49391575183) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1348374 + ... + 1384519.

It is an arithmetic number, because the mean of its divisors is an integer number (3541830624).

Almost surely, 2^49391575189 is an apocalyptic number.

It is an amenable number.

49391575189 is a deficient number, since it is larger than the sum of its proper divisors (7277714795).

49391575189 is a wasteful number, since it uses less digits than its factorization.

49391575189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2732988.

The product of its digits is 12247200, while the sum is 61.

The spelling of 49391575189 in words is "forty-nine billion, three hundred ninety-one million, five hundred seventy-five thousand, one hundred eighty-nine".