5042686279681 has 4 divisors (see below), whose sum is σ = 5064900756912. Its totient is φ = 5020471802452.

The previous prime is 5042686279669. The next prime is 5042686279691. The reversal of 5042686279681 is 1869726862405.

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 a de Polignac number, because none of the positive numbers 2^k-5042686279681 is a prime.

It is a super-2 number, since 2×5042686279681² (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 (5042686279601) 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, 11107238275 + ... + 11107238728.

It is an arithmetic number, because the mean of its divisors is an integer number (1266225189228).

Almost surely, 2^{5042686279681} is an apocalyptic number.

It is an amenable number.

5042686279681 is a deficient number, since it is larger than the sum of its proper divisors (22214477231).

5042686279681 is a wasteful number, since it uses less digits than its factorization.

5042686279681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22214477230.

The product of its (nonzero) digits is 69672960, while the sum is 64.

The spelling of 5042686279681 in words is "five trillion, forty-two billion, six hundred eighty-six million, two hundred seventy-nine thousand, six hundred eighty-one".