127835121621713 has 8 divisors (see below), whose sum is σ = 139468814840736. Its totient is φ = 116203481490400.

The previous prime is 127835121621689. The next prime is 127835121621721. The reversal of 127835121621713 is 317126121538721.

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-127835121621713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127835111621713) 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, 513141731 + ... + 513390792.

It is an arithmetic number, because the mean of its divisors is an integer number (17433601855092).

Almost surely, 2^{127835121621713} is an apocalyptic number.

It is an amenable number.

127835121621713 is a deficient number, since it is larger than the sum of its proper divisors (11633693219023).

127835121621713 is a wasteful number, since it uses less digits than its factorization.

127835121621713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026543855.

The product of its digits is 846720, while the sum is 50.

The spelling of 127835121621713 in words is "one hundred twenty-seven trillion, eight hundred thirty-five billion, one hundred twenty-one million, six hundred twenty-one thousand, seven hundred thirteen".