78218866845033 has 16 divisors (see below), whose sum is σ = 104848712020992. Its totient is φ = 51867523008000.

The previous prime is 78218866845023. The next prime is 78218866845079. The reversal of 78218866845033 is 33054866881287.

It is not a de Polignac number, because 78218866845033 - 2¹³ = 78218866836841 is a prime.

It is a super-2 number, since 2×78218866845033² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78218866845023) 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, 1529128 + ... + 12600633.

It is an arithmetic number, because the mean of its divisors is an integer number (6553044501312).

Almost surely, 2^{78218866845033} is an apocalyptic number.

It is an amenable number.

78218866845033 is a deficient number, since it is larger than the sum of its proper divisors (26629845175959).

78218866845033 is a wasteful number, since it uses less digits than its factorization.

78218866845033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14139616.

The product of its (nonzero) digits is 371589120, while the sum is 69.

The spelling of 78218866845033 in words is "seventy-eight trillion, two hundred eighteen billion, eight hundred sixty-six million, eight hundred forty-five thousand, thirty-three".