8934780081 has 4 divisors (see below), whose sum is σ = 11913040112. Its totient is φ = 5956520052.

The previous prime is 8934780067. The next prime is 8934780089. The reversal of 8934780081 is 1800874398.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8934780081 - 2¹¹ = 8934778033 is a prime.

It is a super-2 number, since 2×8934780081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8934780081.

It is not an unprimeable number, because it can be changed into a prime (8934780089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1489130011 + ... + 1489130016.

It is an arithmetic number, because the mean of its divisors is an integer number (2978260028).

Almost surely, 2^8934780081 is an apocalyptic number.

It is an amenable number.

8934780081 is a deficient number, since it is larger than the sum of its proper divisors (2978260031).

8934780081 is a wasteful number, since it uses less digits than its factorization.

8934780081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2978260030.

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 8934780081 is about 94523.9656436398. The cubic root of 8934780081 is about 2075.0470850882.

The spelling of 8934780081 in words is "eight billion, nine hundred thirty-four million, seven hundred eighty thousand, eighty-one".