72078249599 has 8 divisors (see below), whose sum is σ = 72219273600. Its totient is φ = 71937300096.

The previous prime is 72078249583. The next prime is 72078249601. The reversal of 72078249599 is 99594287027.

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 72078249599 - 2⁴ = 72078249583 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 (72078249559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2164427 + ... + 2197475.

It is an arithmetic number, because the mean of its divisors is an integer number (9027409200).

Almost surely, 2^72078249599 is an apocalyptic number.

72078249599 is a deficient number, since it is larger than the sum of its proper divisors (141024001).

72078249599 is a wasteful number, since it uses less digits than its factorization.

72078249599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37249.

The product of its (nonzero) digits is 22861440, while the sum is 62.

The spelling of 72078249599 in words is "seventy-two billion, seventy-eight million, two hundred forty-nine thousand, five hundred ninety-nine".