78533470081 has 8 divisors (see below), whose sum is σ = 86247864000. Its totient is φ = 70914907440.

The previous prime is 78533470073. The next prime is 78533470133. The reversal of 78533470081 is 18007433587.

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 78533470081 - 2³ = 78533470073 is a prime.

It is a super-2 number, since 2×78533470081² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78533470481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23956101 + ... + 23959378.

It is an arithmetic number, because the mean of its divisors is an integer number (10780983000).

Almost surely, 2^78533470081 is an apocalyptic number.

It is an amenable number.

78533470081 is a deficient number, since it is larger than the sum of its proper divisors (7714393919).

78533470081 is a wasteful number, since it uses less digits than its factorization.

78533470081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47915639.

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 78533470081 in words is "seventy-eight billion, five hundred thirty-three million, four hundred seventy thousand, eighty-one".