127213719537 has 16 divisors (see below), whose sum is σ = 179951452160. Its totient is φ = 79712860752.

The previous prime is 127213719497. The next prime is 127213719547. The reversal of 127213719537 is 735917312721.

It is not a de Polignac number, because 127213719537 - 2²⁰ = 127212670961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127213719547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8779453 + ... + 8793930.

It is an arithmetic number, because the mean of its divisors is an integer number (11246965760).

Almost surely, 2^127213719537 is an apocalyptic number.

It is an amenable number.

127213719537 is a deficient number, since it is larger than the sum of its proper divisors (52737732623).

127213719537 is a wasteful number, since it uses less digits than its factorization.

127213719537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17573532.

The product of its digits is 555660, while the sum is 48.

The spelling of 127213719537 in words is "one hundred twenty-seven billion, two hundred thirteen million, seven hundred nineteen thousand, five hundred thirty-seven".