72000089545 has 16 divisors (see below), whose sum is σ = 93713750928. Its totient is φ = 52889589760.

The previous prime is 72000089533. The next prime is 72000089549. The reversal of 72000089545 is 54598000027.

It can be written as a sum of positive squares in 8 ways, for example, as 2510911881 + 69489177664 = 50109^2 + 263608^2 .

It is not a de Polignac number, because 72000089545 - 2⁹ = 72000089033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72000089498 and 72000089507.

It is not an unprimeable number, because it can be changed into a prime (72000089549) 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, 10326514 + ... + 10333483.

It is an arithmetic number, because the mean of its divisors is an integer number (5857109433).

Almost surely, 2^72000089545 is an apocalyptic number.

It is an amenable number.

72000089545 is a deficient number, since it is larger than the sum of its proper divisors (21713661383).

72000089545 is a wasteful number, since it uses less digits than its factorization.

72000089545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20660060.

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 72000089545 in words is "seventy-two billion, eighty-nine thousand, five hundred forty-five".