127356881421 has 96 divisors (see below), whose sum is σ = 227104197120. Its totient is φ = 62602243200.

The previous prime is 127356881413. The next prime is 127356881489. The reversal of 127356881421 is 124188653721.

It is not a de Polignac number, because 127356881421 - 2³ = 127356881413 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127356881621) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 32595150 + ... + 32599056.

It is an arithmetic number, because the mean of its divisors is an integer number (2365668720).

Almost surely, 2^127356881421 is an apocalyptic number.

127356881421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

127356881421 is a deficient number, since it is larger than the sum of its proper divisors (99747315699).

127356881421 is a wasteful number, since it uses less digits than its factorization.

127356881421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5015 (or 5008 counting only the distinct ones).

The product of its digits is 645120, while the sum is 48.

The spelling of 127356881421 in words is "one hundred twenty-seven billion, three hundred fifty-six million, eight hundred eighty-one thousand, four hundred twenty-one".