72939396009 has 8 divisors (see below), whose sum is σ = 97256617920. Its totient is φ = 48624219056.

The previous prime is 72939395981. The next prime is 72939396067. The reversal of 72939396009 is 90069393927.

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 72939396009 - 2¹⁶ = 72939330473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72939396009.

It is not an unprimeable number, because it can be changed into a prime (72939376009) 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, 425982 + ... + 572135.

It is an arithmetic number, because the mean of its divisors is an integer number (12157077240).

Almost surely, 2^72939396009 is an apocalyptic number.

It is an amenable number.

72939396009 is a deficient number, since it is larger than the sum of its proper divisors (24317221911).

72939396009 is a wasteful number, since it uses less digits than its factorization.

72939396009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022479.

The product of its (nonzero) digits is 4960116, while the sum is 57.

The spelling of 72939396009 in words is "seventy-two billion, nine hundred thirty-nine million, three hundred ninety-six thousand, nine".