22718451249042 has 16 divisors (see below), whose sum is σ = 46115065222752. Its totient is φ = 7459789962240.

The previous prime is 22718451249017. The next prime is 22718451249049. The reversal of 22718451249042 is 24094215481722.

It is a super-2 number, since 2×22718451249042² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22718451249049) 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, 28256779759 + ... + 28256780562.

It is an arithmetic number, because the mean of its divisors is an integer number (2882191576422).

Almost surely, 2^{22718451249042} is an apocalyptic number.

22718451249042 is an abundant number, since it is smaller than the sum of its proper divisors (23396613973710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22718451249042 is a wasteful number, since it uses less digits than its factorization.

22718451249042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56513560393.

The product of its (nonzero) digits is 2580480, while the sum is 51.

The spelling of 22718451249042 in words is "twenty-two trillion, seven hundred eighteen billion, four hundred fifty-one million, two hundred forty-nine thousand, forty-two".