127340638757 has 8 divisors (see below), whose sum is σ = 127544185440. Its totient is φ = 127137250800.

The previous prime is 127340638741. The next prime is 127340638807. The reversal of 127340638757 is 757836043721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 127340638757 - 2⁴ = 127340638741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 127340638699 and 127340638708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127340638727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1621163 + ... + 1697895.

It is an arithmetic number, because the mean of its divisors is an integer number (15943023180).

Almost surely, 2^127340638757 is an apocalyptic number.

It is an amenable number.

127340638757 is a deficient number, since it is larger than the sum of its proper divisors (203546683).

127340638757 is a wasteful number, since it uses less digits than its factorization.

127340638757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79363.

The product of its (nonzero) digits is 5927040, while the sum is 53.

The spelling of 127340638757 in words is "one hundred twenty-seven billion, three hundred forty million, six hundred thirty-eight thousand, seven hundred fifty-seven".