127297512647 has 2 divisors, whose sum is σ = 127297512648. Its totient is φ = 127297512646.

The previous prime is 127297512611. The next prime is 127297512673. The reversal of 127297512647 is 746215792721.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 127297512647 - 2²² = 127293318343 is a prime.

It is a super-2 number, since 2×127297512647² (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 (127297512697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63648756323 + 63648756324.

It is an arithmetic number, because the mean of its divisors is an integer number (63648756324).

Almost surely, 2^127297512647 is an apocalyptic number.

127297512647 is a deficient number, since it is larger than the sum of its proper divisors (1).

127297512647 is an equidigital number, since it uses as much as digits as its factorization.

127297512647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2963520, while the sum is 53.

The spelling of 127297512647 in words is "one hundred twenty-seven billion, two hundred ninety-seven million, five hundred twelve thousand, six hundred forty-seven".