72689839488 has 144 divisors (see below), whose sum is σ = 243323400060. Its totient is φ = 20768509440.

The previous prime is 72689839483. The next prime is 72689839489. The reversal of 72689839488 is 88493898627.

72689839488 is a `hidden beast` number, since 7 + 2 + 68 + 9 + 83 + 9 + 488 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72689839483) 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 17 ways as a sum of consecutive naturals, for example, 587418 + ... + 700313.

Almost surely, 2^72689839488 is an apocalyptic number.

It is an amenable number.

72689839488 is an abundant number, since it is smaller than the sum of its proper divisors (170633560572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72689839488 is a wasteful number, since it uses less digits than its factorization.

72689839488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287765 (or 1287743 counting only the distinct ones).

The product of its digits is 334430208, while the sum is 72.

The spelling of 72689839488 in words is "seventy-two billion, six hundred eighty-nine million, eight hundred thirty-nine thousand, four hundred eighty-eight".