8564089978081 has 8 divisors (see below), whose sum is σ = 9343558693728. Its totient is φ = 7784773776000.

The previous prime is 8564089978069. The next prime is 8564089978127. The reversal of 8564089978081 is 1808799804658.

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 8564089978081 - 2¹¹ = 8564089976033 is a prime.

It is a super-2 number, since 2×8564089978081² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8564089977995 and 8564089978013.

It is not an unprimeable number, because it can be changed into a prime (8564089948081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38010960 + ... + 38235601.

It is an arithmetic number, because the mean of its divisors is an integer number (1167944836716).

Almost surely, 2^{8564089978081} is an apocalyptic number.

It is an amenable number.

8564089978081 is a deficient number, since it is larger than the sum of its proper divisors (779468715647).

8564089978081 is a wasteful number, since it uses less digits than its factorization.

8564089978081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76256783.

The product of its (nonzero) digits is 278691840, while the sum is 73.

The spelling of 8564089978081 in words is "eight trillion, five hundred sixty-four billion, eighty-nine million, nine hundred seventy-eight thousand, eighty-one".