72041025872 has 20 divisors (see below), whose sum is σ = 142983866676. Its totient is φ = 35141963520.

The previous prime is 72041025871. The next prime is 72041025899. The reversal of 72041025872 is 27852014027.

It can be written as a sum of positive squares in 2 ways, for example, as 8347380496 + 63693645376 = 91364^2 + 252376^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72041025871) by changing a digit.

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, 54908663 + ... + 54909974.

Almost surely, 2^72041025872 is an apocalyptic number.

It is an amenable number.

72041025872 is a deficient number, since it is larger than the sum of its proper divisors (70942840804).

72041025872 is a wasteful number, since it uses less digits than its factorization.

72041025872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109818686 (or 109818680 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 38.

Adding to 72041025872 its reverse (27852014027), we get a palindrome (99893039899).

The spelling of 72041025872 in words is "seventy-two billion, forty-one million, twenty-five thousand, eight hundred seventy-two".