127631328835607 has 2 divisors, whose sum is σ = 127631328835608. Its totient is φ = 127631328835606.

The previous prime is 127631328835579. The next prime is 127631328835667. The reversal of 127631328835607 is 706538823136721.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127631328835607 is a prime.

It is a super-2 number, since 2×127631328835607² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 127631328835607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127631328835667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63815664417803 + 63815664417804.

It is an arithmetic number, because the mean of its divisors is an integer number (63815664417804).

Almost surely, 2^{127631328835607} is an apocalyptic number.

127631328835607 is a deficient number, since it is larger than the sum of its proper divisors (1).

127631328835607 is an equidigital number, since it uses as much as digits as its factorization.

127631328835607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60963840, while the sum is 62.

The spelling of 127631328835607 in words is "one hundred twenty-seven trillion, six hundred thirty-one billion, three hundred twenty-eight million, eight hundred thirty-five thousand, six hundred seven".