49708661589 has 12 divisors (see below), whose sum is σ = 76025012076. Its totient is φ = 31189748352.

The previous prime is 49708661581. The next prime is 49708661627. The reversal of 49708661589 is 98516680794.

49708661589 is a `hidden beast` number, since 4 + 9 + 7 + 0 + 8 + 6 + 615 + 8 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15180704100 + 34527957489 = 123210^2 + 185817^2 .

It is not a de Polignac number, because 49708661589 - 2³ = 49708661581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49708661581) 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 11 ways as a sum of consecutive naturals, for example, 162446454 + ... + 162446759.

It is an arithmetic number, because the mean of its divisors is an integer number (6335417673).

Almost surely, 2^49708661589 is an apocalyptic number.

It is an amenable number.

49708661589 is a deficient number, since it is larger than the sum of its proper divisors (26316350487).

49708661589 is a wasteful number, since it uses less digits than its factorization.

49708661589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324893236 (or 324893233 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The spelling of 49708661589 in words is "forty-nine billion, seven hundred eight million, six hundred sixty-one thousand, five hundred eighty-nine".