7273115561440 has 48 divisors (see below), whose sum is σ = 17197285271040. Its totient is φ = 2906782773760.

The previous prime is 7273115561417. The next prime is 7273115561471. The reversal of 7273115561440 is 441655113727.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19056160 + ... + 19434079.

It is an arithmetic number, because the mean of its divisors is an integer number (358276776480).

Almost surely, 2^{7273115561440} is an apocalyptic number.

It is an amenable number.

7273115561440 is an abundant number, since it is smaller than the sum of its proper divisors (9924169709600).

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

7273115561440 is a wasteful number, since it uses less digits than its factorization.

7273115561440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38491435 (or 38491427 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 46.

The spelling of 7273115561440 in words is "seven trillion, two hundred seventy-three billion, one hundred fifteen million, five hundred sixty-one thousand, four hundred forty".