127907378839 has 4 divisors (see below), whose sum is σ = 127978957224. Its totient is φ = 127835800456.

The previous prime is 127907378827. The next prime is 127907378941. The reversal of 127907378839 is 938873709721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 938873709721 = 1109 ⋅846594869.

It is a cyclic number.

It is not a de Polignac number, because 127907378839 - 2²¹ = 127905281687 is a prime.

It is a super-2 number, since 2×127907378839² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127907378239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35786512 + ... + 35790085.

It is an arithmetic number, because the mean of its divisors is an integer number (31994739306).

Almost surely, 2^127907378839 is an apocalyptic number.

127907378839 is a deficient number, since it is larger than the sum of its proper divisors (71578385).

127907378839 is an equidigital number, since it uses as much as digits as its factorization.

127907378839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71578384.

The product of its (nonzero) digits is 32006016, while the sum is 64.

The spelling of 127907378839 in words is "one hundred twenty-seven billion, nine hundred seven million, three hundred seventy-eight thousand, eight hundred thirty-nine".