7272503217537 has 16 divisors (see below), whose sum is σ = 9938940462528. Its totient is φ = 4727337995520.

The previous prime is 7272503217533. The next prime is 7272503217583. The reversal of 7272503217537 is 7357123052727.

It is not a de Polignac number, because 7272503217537 - 2² = 7272503217533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7272503217537.

It is not an unprimeable number, because it can be changed into a prime (7272503217533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16945948 + ... + 17369805.

It is an arithmetic number, because the mean of its divisors is an integer number (621183778908).

Almost surely, 2^{7272503217537} is an apocalyptic number.

It is an amenable number.

7272503217537 is a deficient number, since it is larger than the sum of its proper divisors (2666437244991).

7272503217537 is a wasteful number, since it uses less digits than its factorization.

7272503217537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34317520.

The product of its (nonzero) digits is 4321800, while the sum is 51.

The spelling of 7272503217537 in words is "seven trillion, two hundred seventy-two billion, five hundred three million, two hundred seventeen thousand, five hundred thirty-seven".