127179791287 has 2 divisors, whose sum is σ = 127179791288. Its totient is φ = 127179791286.

The previous prime is 127179791267. The next prime is 127179791311. The reversal of 127179791287 is 782197971721.

It is a weak prime.

It is an emirp because it is prime and its reverse (782197971721) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127179791287 is a prime.

It is a super-2 number, since 2×127179791287² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127179791267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63589895643 + 63589895644.

It is an arithmetic number, because the mean of its divisors is an integer number (63589895644).

Almost surely, 2^127179791287 is an apocalyptic number.

127179791287 is a deficient number, since it is larger than the sum of its proper divisors (1).

127179791287 is an equidigital number, since it uses as much as digits as its factorization.

127179791287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6223392, while the sum is 61.

The spelling of 127179791287 in words is "one hundred twenty-seven billion, one hundred seventy-nine million, seven hundred ninety-one thousand, two hundred eighty-seven".