72856121240033 has 16 divisors (see below), whose sum is σ = 74595432443136. Its totient is φ = 71118867939840.

The previous prime is 72856121240029. The next prime is 72856121240053. The reversal of 72856121240033 is 33004212165827.

It is a cyclic number.

It is not a de Polignac number, because 72856121240033 - 2² = 72856121240029 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72856121240053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 483064991 + ... + 483215787.

It is an arithmetic number, because the mean of its divisors is an integer number (4662214527696).

Almost surely, 2^{72856121240033} is an apocalyptic number.

It is an amenable number.

72856121240033 is a deficient number, since it is larger than the sum of its proper divisors (1739311203103).

72856121240033 is a wasteful number, since it uses less digits than its factorization.

72856121240033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157544.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 72856121240033 in words is "seventy-two trillion, eight hundred fifty-six billion, one hundred twenty-one million, two hundred forty thousand, thirty-three".