5129175367681 has 4 divisors (see below), whose sum is σ = 5399131966000. Its totient is φ = 4859218769364.

The previous prime is 5129175367633. The next prime is 5129175367691. The reversal of 5129175367681 is 1867635719215.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5129175367681 - 2²³ = 5129166979073 is a prime.

It is a super-2 number, since 2×5129175367681² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5129175367601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134978299131 + ... + 134978299168.

It is an arithmetic number, because the mean of its divisors is an integer number (1349782991500).

Almost surely, 2^{5129175367681} is an apocalyptic number.

It is an amenable number.

5129175367681 is a deficient number, since it is larger than the sum of its proper divisors (269956598319).

5129175367681 is a wasteful number, since it uses less digits than its factorization.

5129175367681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269956598318.

The product of its digits is 19051200, while the sum is 61.

The spelling of 5129175367681 in words is "five trillion, one hundred twenty-nine billion, one hundred seventy-five million, three hundred sixty-seven thousand, six hundred eighty-one".