7273266681138 has 16 divisors (see below), whose sum is σ = 14546718854976. Its totient is φ = 2424391311600.

The previous prime is 7273266681119. The next prime is 7273266681139. The reversal of 7273266681138 is 8311866623727.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (7273266681139) 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, 7216513 + ... + 8162388.

It is an arithmetic number, because the mean of its divisors is an integer number (909169928436).

Almost surely, 2^{7273266681138} is an apocalyptic number.

7273266681138 is an abundant number, since it is smaller than the sum of its proper divisors (7273452173838).

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

7273266681138 is a wasteful number, since it uses less digits than its factorization.

7273266681138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15457729.

The product of its digits is 24385536, while the sum is 60.

The spelling of 7273266681138 in words is "seven trillion, two hundred seventy-three billion, two hundred sixty-six million, six hundred eighty-one thousand, one hundred thirty-eight".