127137650663 has 2 divisors, whose sum is σ = 127137650664. Its totient is φ = 127137650662.

The previous prime is 127137650639. The next prime is 127137650683. The reversal of 127137650663 is 366056731721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 127137650663 - 2³² = 122842683367 is a prime.

It is a super-2 number, since 2×127137650663² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127137650683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63568825331 + 63568825332.

It is an arithmetic number, because the mean of its divisors is an integer number (63568825332).

Almost surely, 2^127137650663 is an apocalyptic number.

127137650663 is a deficient number, since it is larger than the sum of its proper divisors (1).

127137650663 is an equidigital number, since it uses as much as digits as its factorization.

127137650663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 952560, while the sum is 47.

The spelling of 127137650663 in words is "one hundred twenty-seven billion, one hundred thirty-seven million, six hundred fifty thousand, six hundred sixty-three".