72289734461506 has 8 divisors (see below), whose sum is σ = 108979499188800. Its totient is φ = 35963234731908.

The previous prime is 72289734461449. The next prime is 72289734461579. The reversal of 72289734461506 is 60516443798227.

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

It is a super-3 number, since 3×72289734461506³ (a number of 43 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90816248926 + ... + 90816249721.

It is an arithmetic number, because the mean of its divisors is an integer number (13622437398600).

It is a 2-persistent number, because it is pandigital, and so is 2⋅72289734461506 = 144579468923012, but 3⋅72289734461506 = 216869203384518 is not.

Almost surely, 2^{72289734461506} is an apocalyptic number.

72289734461506 is a deficient number, since it is larger than the sum of its proper divisors (36689764727294).

72289734461506 is a wasteful number, since it uses less digits than its factorization.

72289734461506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181632498848.

The product of its (nonzero) digits is 121927680, while the sum is 64.

The spelling of 72289734461506 in words is "seventy-two trillion, two hundred eighty-nine billion, seven hundred thirty-four million, four hundred sixty-one thousand, five hundred six".