127213760534557 has 8 divisors (see below), whose sum is σ = 127511039071584. Its totient is φ = 126916527558288.

The previous prime is 127213760534453. The next prime is 127213760534617. The reversal of 127213760534557 is 755435067312721.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127213760534557 is a prime.

It is a super-2 number, since 2×127213760534557² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127213760532557) 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, 5796103 + ... + 16971220.

It is an arithmetic number, because the mean of its divisors is an integer number (15938879883948).

Almost surely, 2^{127213760534557} is an apocalyptic number.

It is an amenable number.

127213760534557 is a deficient number, since it is larger than the sum of its proper divisors (297278537027).

127213760534557 is a wasteful number, since it uses less digits than its factorization.

127213760534557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22780379.

The product of its (nonzero) digits is 37044000, while the sum is 58.

The spelling of 127213760534557 in words is "one hundred twenty-seven trillion, two hundred thirteen billion, seven hundred sixty million, five hundred thirty-four thousand, five hundred fifty-seven".