49408128529169 has 16 divisors (see below), whose sum is σ = 50361420219840. Its totient is φ = 48455621672640.

The previous prime is 49408128529157. The next prime is 49408128529183. The reversal of 49408128529169 is 96192582180494.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49408128529169 is a prime.

It is a super-2 number, since 2×49408128529169² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49408128529099 and 49408128529108.

It is not an unprimeable number, because it can be changed into a prime (49408128529139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1406939999 + ... + 1406975115.

It is an arithmetic number, because the mean of its divisors is an integer number (3147588763740).

Almost surely, 2^{49408128529169} is an apocalyptic number.

It is an amenable number.

49408128529169 is a deficient number, since it is larger than the sum of its proper divisors (953291690671).

49408128529169 is a wasteful number, since it uses less digits than its factorization.

49408128529169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45520.

The product of its (nonzero) digits is 89579520, while the sum is 68.

The spelling of 49408128529169 in words is "forty-nine trillion, four hundred eight billion, one hundred twenty-eight million, five hundred twenty-nine thousand, one hundred sixty-nine".