72086523909 has 16 divisors (see below), whose sum is σ = 99387886080. Its totient is φ = 46426798080.

The previous prime is 72086523907. The next prime is 72086523923. The reversal of 72086523909 is 90932568027.

It is not a de Polignac number, because 72086523909 - 2¹ = 72086523907 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72086523907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 618024 + ... + 725345.

It is an arithmetic number, because the mean of its divisors is an integer number (6211742880).

Almost surely, 2^72086523909 is an apocalyptic number.

It is an amenable number.

72086523909 is a deficient number, since it is larger than the sum of its proper divisors (27301362171).

72086523909 is a wasteful number, since it uses less digits than its factorization.

72086523909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343980.

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 72086523909 in words is "seventy-two billion, eighty-six million, five hundred twenty-three thousand, nine hundred nine".