72512536210540 has 24 divisors (see below), whose sum is σ = 152533115824320. Its totient is φ = 28956102144768.

The previous prime is 72512536210529. The next prime is 72512536210547. The reversal of 72512536210540 is 4501263521527.

It is a super-3 number, since 3×72512536210540³ (a number of 43 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (72512536210547) 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, 3057009060 + ... + 3057032779.

It is an arithmetic number, because the mean of its divisors is an integer number (6355546492680).

Almost surely, 2^{72512536210540} is an apocalyptic number.

It is an amenable number.

72512536210540 is an abundant number, since it is smaller than the sum of its proper divisors (80020579613780).

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

72512536210540 is a wasteful number, since it uses less digits than its factorization.

72512536210540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6114042441 (or 6114042439 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 43.

The spelling of 72512536210540 in words is "seventy-two trillion, five hundred twelve billion, five hundred thirty-six million, two hundred ten thousand, five hundred forty".