127867478552771 has 2 divisors, whose sum is σ = 127867478552772. Its totient is φ = 127867478552770.

The previous prime is 127867478552729. The next prime is 127867478552791. The reversal of 127867478552771 is 177255874768721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 127867478552771 - 2¹⁸ = 127867478290627 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 127867478552692 and 127867478552701.

It is not a weakly prime, because it can be changed into another prime (127867478552791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63933739276385 + 63933739276386.

It is an arithmetic number, because the mean of its divisors is an integer number (63933739276386).

Almost surely, 2^{127867478552771} is an apocalyptic number.

127867478552771 is a deficient number, since it is larger than the sum of its proper divisors (1).

127867478552771 is an equidigital number, since it uses as much as digits as its factorization.

127867478552771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2581555200, while the sum is 77.

The spelling of 127867478552771 in words is "one hundred twenty-seven trillion, eight hundred sixty-seven billion, four hundred seventy-eight million, five hundred fifty-two thousand, seven hundred seventy-one".