72573179232 has 24 divisors (see below), whose sum is σ = 190504595736. Its totient is φ = 24191059712.

The previous prime is 72573179221. The next prime is 72573179243. The reversal of 72573179232 is 23297137527.

It is an interprime number because it is at equal distance from previous prime (72573179221) and next prime (72573179243).

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×72573179232² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377985213 + ... + 377985404.

It is an arithmetic number, because the mean of its divisors is an integer number (7937691489).

Almost surely, 2^72573179232 is an apocalyptic number.

It is an amenable number.

72573179232 is an abundant number, since it is smaller than the sum of its proper divisors (117931416504).

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

72573179232 is a wasteful number, since it uses less digits than its factorization.

72573179232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755970630 (or 755970622 counting only the distinct ones).

The product of its digits is 1111320, while the sum is 48.

The spelling of 72573179232 in words is "seventy-two billion, five hundred seventy-three million, one hundred seventy-nine thousand, two hundred thirty-two".