72905028706 has 8 divisors (see below), whose sum is σ = 115113203280. Its totient is φ = 34533960948.

The previous prime is 72905028701. The next prime is 72905028709. The reversal of 72905028706 is 60782050927.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (72905028701) 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 3 ways as a sum of consecutive naturals, for example, 959276656 + ... + 959276731.

It is an arithmetic number, because the mean of its divisors is an integer number (14389150410).

Almost surely, 2^72905028706 is an apocalyptic number.

72905028706 is a deficient number, since it is larger than the sum of its proper divisors (42208174574).

72905028706 is a wasteful number, since it uses less digits than its factorization.

72905028706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918553408.

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 72905028706 in words is "seventy-two billion, nine hundred five million, twenty-eight thousand, seven hundred six".