72725381887 has 8 divisors (see below), whose sum is σ = 73843180976. Its totient is φ = 71608534272.

The previous prime is 72725381843. The next prime is 72725381903. The reversal of 72725381887 is 78818352727.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72725381887 - 2¹⁵ = 72725349119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72725481887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83058 + ... + 390319.

It is an arithmetic number, because the mean of its divisors is an integer number (9230397622).

Almost surely, 2^72725381887 is an apocalyptic number.

72725381887 is a deficient number, since it is larger than the sum of its proper divisors (1117799089).

72725381887 is a wasteful number, since it uses less digits than its factorization.

72725381887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475737.

The product of its digits is 10536960, while the sum is 58.

The spelling of 72725381887 in words is "seventy-two billion, seven hundred twenty-five million, three hundred eighty-one thousand, eight hundred eighty-seven".