127397208647 has 8 divisors (see below), whose sum is σ = 128025744000. Its totient is φ = 126770060664.

The previous prime is 127397208619. The next prime is 127397208661. The reversal of 127397208647 is 746802793721.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 127397208647 - 2³² = 123102241351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 127397208592 and 127397208601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127397208677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162497 + ... + 530282.

It is an arithmetic number, because the mean of its divisors is an integer number (16003218000).

Almost surely, 2^127397208647 is an apocalyptic number.

127397208647 is a deficient number, since it is larger than the sum of its proper divisors (628535353).

127397208647 is an equidigital number, since it uses as much as digits as its factorization.

127397208647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693685.

The product of its (nonzero) digits is 7112448, while the sum is 56.

The spelling of 127397208647 in words is "one hundred twenty-seven billion, three hundred ninety-seven million, two hundred eight thousand, six hundred forty-seven".