72800541685 has 16 divisors (see below), whose sum is σ = 92532955392. Its totient is φ = 54794707200.

The previous prime is 72800541581. The next prime is 72800541707. The reversal of 72800541685 is 58614500827.

It is not a de Polignac number, because 72800541685 - 2⁹ = 72800541173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83800 + ... + 390670.

It is an arithmetic number, because the mean of its divisors is an integer number (5783309712).

Almost surely, 2^72800541685 is an apocalyptic number.

It is an amenable number.

72800541685 is a deficient number, since it is larger than the sum of its proper divisors (19732413707).

72800541685 is a wasteful number, since it uses less digits than its factorization.

72800541685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309684.

The product of its (nonzero) digits is 537600, while the sum is 46.

The spelling of 72800541685 in words is "seventy-two billion, eight hundred million, five hundred forty-one thousand, six hundred eighty-five".