7272299024640 has 864 divisors, whose sum is σ = 28380293899776. Its totient is φ = 1772281036800.

The previous prime is 7272299024587. The next prime is 7272299024651. The reversal of 7272299024640 is 464209922727.

7272299024640 is a `hidden beast` number, since 7 + 2 + 72 + 29 + 90 + 2 + 464 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 408386617 + ... + 408404423.

It is an arithmetic number, because the mean of its divisors is an integer number (32847562384).

Almost surely, 2^{7272299024640} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7272299024640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14190146949888).

7272299024640 is an abundant number, since it is smaller than the sum of its proper divisors (21107994875136).

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

7272299024640 is a wasteful number, since it uses less digits than its factorization.

7272299024640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17957 (or 17931 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 54.

The spelling of 7272299024640 in words is "seven trillion, two hundred seventy-two billion, two hundred ninety-nine million, twenty-four thousand, six hundred forty".