127321614638 has 16 divisors (see below), whose sum is σ = 194134631040. Its totient is φ = 62614351800.

The previous prime is 127321614617. The next prime is 127321614649. The reversal of 127321614638 is 836416123721.

It is a happy number.

It is a congruent number.

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, 1010468 + ... + 1129463.

It is an arithmetic number, because the mean of its divisors is an integer number (12133414440).

Almost surely, 2^127321614638 is an apocalyptic number.

127321614638 is a deficient number, since it is larger than the sum of its proper divisors (66813016402).

127321614638 is a wasteful number, since it uses less digits than its factorization.

127321614638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2140423.

The product of its digits is 290304, while the sum is 44.

The spelling of 127321614638 in words is "one hundred twenty-seven billion, three hundred twenty-one million, six hundred fourteen thousand, six hundred thirty-eight".