127531616049 has 8 divisors (see below), whose sum is σ = 188935727520. Its totient is φ = 85021077348.

The previous prime is 127531616041. The next prime is 127531616053. The reversal of 127531616049 is 940616135721.

127531616049 is a `hidden beast` number, since 1 + 2 + 7 + 5 + 31 + 6 + 1 + 604 + 9 = 666.

It is not a de Polignac number, because 127531616049 - 2³ = 127531616041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 127531615995 and 127531616013.

It is not an unprimeable number, because it can be changed into a prime (127531616041) 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 7 ways as a sum of consecutive naturals, for example, 2361696567 + ... + 2361696620.

It is an arithmetic number, because the mean of its divisors is an integer number (23616965940).

Almost surely, 2^127531616049 is an apocalyptic number.

It is an amenable number.

127531616049 is a deficient number, since it is larger than the sum of its proper divisors (61404111471).

127531616049 is an equidigital number, since it uses as much as digits as its factorization.

127531616049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4723393196 (or 4723393190 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 127531616049 in words is "one hundred twenty-seven billion, five hundred thirty-one million, six hundred sixteen thousand, forty-nine".