2518723608081 has 8 divisors (see below), whose sum is σ = 3363394198560. Its totient is φ = 1676601044832.

The previous prime is 2518723608041. The next prime is 2518723608101. The reversal of 2518723608081 is 1808063278152.

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

It is not a de Polignac number, because 2518723608081 - 2¹¹ = 2518723606033 is a prime.

It is a super-2 number, since 2×2518723608081² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2518723608031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 637004500 + ... + 637008453.

It is an arithmetic number, because the mean of its divisors is an integer number (420424274820).

Almost surely, 2^{2518723608081} is an apocalyptic number.

It is an amenable number.

2518723608081 is a deficient number, since it is larger than the sum of its proper divisors (844670590479).

2518723608081 is a wasteful number, since it uses less digits than its factorization.

2518723608081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274013615.

The product of its (nonzero) digits is 1290240, while the sum is 51.

The spelling of 2518723608081 in words is "two trillion, five hundred eighteen billion, seven hundred twenty-three million, six hundred eight thousand, eighty-one".