127999999995 has 64 divisors (see below), whose sum is σ = 246991887360. Its totient is φ = 55296000000.

The previous prime is 127999999943. The next prime is 127999999997. The reversal of 127999999995 is 599999999721.

It is not a de Polignac number, because 127999999995 - 2⁹ = 127999999483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (127999999997) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 719995 + ... + 879995.

It is an arithmetic number, because the mean of its divisors is an integer number (3859248240).

Almost surely, 2^127999999995 is an apocalyptic number.

127999999995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

127999999995 is a deficient number, since it is larger than the sum of its proper divisors (118991887365).

127999999995 is a wasteful number, since it uses less digits than its factorization.

127999999995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160436.

The product of its digits is 3013270470, while the sum is 87.

The spelling of 127999999995 in words is "one hundred twenty-seven billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-five".