127807829397 has 20 divisors (see below), whose sum is σ = 200971378080. Its totient is φ = 80720733384.

The previous prime is 127807829389. The next prime is 127807829411. The reversal of 127807829397 is 793928708721.

127807829397 is a `hidden beast` number, since 1 + 278 + 0 + 78 + 293 + 9 + 7 = 666.

It is not a de Polignac number, because 127807829397 - 2³ = 127807829389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127807827397) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 41521473 + ... + 41524550.

It is an arithmetic number, because the mean of its divisors is an integer number (10048568904).

Almost surely, 2^127807829397 is an apocalyptic number.

It is an amenable number.

127807829397 is a deficient number, since it is larger than the sum of its proper divisors (73163548683).

127807829397 is an equidigital number, since it uses as much as digits as its factorization.

127807829397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83046054 (or 83046045 counting only the distinct ones).

The product of its (nonzero) digits is 21337344, while the sum is 63.

The spelling of 127807829397 in words is "one hundred twenty-seven billion, eight hundred seven million, eight hundred twenty-nine thousand, three hundred ninety-seven".