72308660079 has 8 divisors (see below), whose sum is σ = 96417458352. Its totient is φ = 48202817600.

The previous prime is 72308660057. The next prime is 72308660087. The reversal of 72308660079 is 97006680327.

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 72308660079 - 2³¹ = 70161176431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72308668079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 681222 + ... + 780179.

It is an arithmetic number, because the mean of its divisors is an integer number (12052182294).

Almost surely, 2^72308660079 is an apocalyptic number.

72308660079 is a deficient number, since it is larger than the sum of its proper divisors (24108798273).

72308660079 is a wasteful number, since it uses less digits than its factorization.

72308660079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477897.

The product of its (nonzero) digits is 762048, while the sum is 48.

The spelling of 72308660079 in words is "seventy-two billion, three hundred eight million, six hundred sixty thousand, seventy-nine".