127378868385 has 8 divisors (see below), whose sum is σ = 203806189440. Its totient is φ = 67935396464.

The previous prime is 127378868377. The next prime is 127378868423. The reversal of 127378868385 is 583868873721.

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 127378868385 - 2³ = 127378868377 is a prime.

It is a super-2 number, since 2×127378868385² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4245962265 + ... + 4245962294.

It is an arithmetic number, because the mean of its divisors is an integer number (25475773680).

Almost surely, 2^127378868385 is an apocalyptic number.

127378868385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

127378868385 is a deficient number, since it is larger than the sum of its proper divisors (76427321055).

127378868385 is an equidigital number, since it uses as much as digits as its factorization.

127378868385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8491924567.

The product of its digits is 108380160, while the sum is 66.

The spelling of 127378868385 in words is "one hundred twenty-seven billion, three hundred seventy-eight million, eight hundred sixty-eight thousand, three hundred eighty-five".