49159551909 has 32 divisors (see below), whose sum is σ = 71711610880. Its totient is φ = 29774132928.

The previous prime is 49159551853. The next prime is 49159551919. The reversal of 49159551909 is 90915595194.

It is not a de Polignac number, because 49159551909 - 2⁷ = 49159551781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49159551919) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 617232 + ... + 692310.

It is an arithmetic number, because the mean of its divisors is an integer number (2240987840).

Almost surely, 2^49159551909 is an apocalyptic number.

It is an amenable number.

49159551909 is a deficient number, since it is larger than the sum of its proper divisors (22552058971).

49159551909 is a wasteful number, since it uses less digits than its factorization.

49159551909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75361.

The product of its (nonzero) digits is 3280500, while the sum is 57.

The spelling of 49159551909 in words is "forty-nine billion, one hundred fifty-nine million, five hundred fifty-one thousand, nine hundred nine".