72308972829 has 8 divisors (see below), whose sum is σ = 96689809440. Its totient is φ = 48067059056.

The previous prime is 72308972819. The next prime is 72308972837. The reversal of 72308972829 is 92827980327.

It is a happy number.

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 72308972829 - 2⁹ = 72308972317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72308972819) 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, 34729494 + ... + 34731575.

It is an arithmetic number, because the mean of its divisors is an integer number (12086226180).

Almost surely, 2^72308972829 is an apocalyptic number.

It is an amenable number.

72308972829 is a deficient number, since it is larger than the sum of its proper divisors (24380836611).

72308972829 is a wasteful number, since it uses less digits than its factorization.

72308972829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69461419.

The product of its (nonzero) digits is 6096384, while the sum is 57.

The spelling of 72308972829 in words is "seventy-two billion, three hundred eight million, nine hundred seventy-two thousand, eight hundred twenty-nine".