127122804647 has 2 divisors, whose sum is σ = 127122804648. Its totient is φ = 127122804646.

The previous prime is 127122804637. The next prime is 127122804673. The reversal of 127122804647 is 746408221721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 127122804647 - 2³⁴ = 109942935463 is a prime.

It is a super-2 number, since 2×127122804647² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 127122804598 and 127122804607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127122804637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63561402323 + 63561402324.

It is an arithmetic number, because the mean of its divisors is an integer number (63561402324).

Almost surely, 2^127122804647 is an apocalyptic number.

127122804647 is a deficient number, since it is larger than the sum of its proper divisors (1).

127122804647 is an equidigital number, since it uses as much as digits as its factorization.

127122804647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 301056, while the sum is 44.

The spelling of 127122804647 in words is "one hundred twenty-seven billion, one hundred twenty-two million, eight hundred four thousand, six hundred forty-seven".