127261940062877 has 2 divisors, whose sum is σ = 127261940062878. Its totient is φ = 127261940062876.

The previous prime is 127261940062813. The next prime is 127261940062931. The reversal of 127261940062877 is 778260049162721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112552981591801 + 14708958471076 = 10609099^2 + 3835226^2 .

It is a cyclic number.

It is not a de Polignac number, because 127261940062877 - 2⁶ = 127261940062813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127261945062877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63630970031438 + 63630970031439.

It is an arithmetic number, because the mean of its divisors is an integer number (63630970031439).

Almost surely, 2^{127261940062877} is an apocalyptic number.

It is an amenable number.

127261940062877 is a deficient number, since it is larger than the sum of its proper divisors (1).

127261940062877 is an equidigital number, since it uses as much as digits as its factorization.

127261940062877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28449792, while the sum is 62.

The spelling of 127261940062877 in words is "one hundred twenty-seven trillion, two hundred sixty-one billion, nine hundred forty million, sixty-two thousand, eight hundred seventy-seven".