127430782057 has 16 divisors (see below), whose sum is σ = 130211822592. Its totient is φ = 124676632080.

The previous prime is 127430782033. The next prime is 127430782093. The reversal of 127430782057 is 750287034721.

It is a cyclic number.

It is not a de Polignac number, because 127430782057 - 2¹⁵ = 127430749289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 127430781998 and 127430782016.

It is not an unprimeable number, because it can be changed into a prime (127430782007) 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, 22789332 + ... + 22794922.

It is an arithmetic number, because the mean of its divisors is an integer number (8138238912).

Almost surely, 2^127430782057 is an apocalyptic number.

It is an amenable number.

127430782057 is a deficient number, since it is larger than the sum of its proper divisors (2781040535).

127430782057 is a wasteful number, since it uses less digits than its factorization.

127430782057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7908.

The product of its (nonzero) digits is 658560, while the sum is 46.

The spelling of 127430782057 in words is "one hundred twenty-seven billion, four hundred thirty million, seven hundred eighty-two thousand, fifty-seven".