72032643573 has 32 divisors (see below), whose sum is σ = 110419330560. Its totient is φ = 41309663040.

The previous prime is 72032643563. The next prime is 72032643619. The reversal of 72032643573 is 37534623027.

It is not a de Polignac number, because 72032643573 - 2⁶ = 72032643509 is a prime.

It is a super-2 number, since 2×72032643573² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72032643563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 467490 + ... + 602172.

It is an arithmetic number, because the mean of its divisors is an integer number (3450604080).

Almost surely, 2^72032643573 is an apocalyptic number.

It is an amenable number.

72032643573 is a deficient number, since it is larger than the sum of its proper divisors (38386686987).

72032643573 is a wasteful number, since it uses less digits than its factorization.

72032643573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135569.

The product of its (nonzero) digits is 635040, while the sum is 42.

The spelling of 72032643573 in words is "seventy-two billion, thirty-two million, six hundred forty-three thousand, five hundred seventy-three".