8001742081 has 16 divisors (see below), whose sum is σ = 8245778688. Its totient is φ = 7760188800.

The previous prime is 8001742079. The next prime is 8001742123. The reversal of 8001742081 is 1802471008.

It is a cyclic number.

It is not a de Polignac number, because 8001742081 - 2¹ = 8001742079 is a prime.

It is a super-2 number, since 2×8001742081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8001742181) 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, 8783016 + ... + 8783926.

It is an arithmetic number, because the mean of its divisors is an integer number (515361168).

Almost surely, 2^8001742081 is an apocalyptic number.

It is an amenable number.

8001742081 is a deficient number, since it is larger than the sum of its proper divisors (244036607).

8001742081 is a wasteful number, since it uses less digits than its factorization.

8001742081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992.

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 8001742081 is about 89452.4570987293. The cubic root of 8001742081 is about 2000.1451628803.

The spelling of 8001742081 in words is "eight billion, one million, seven hundred forty-two thousand, eighty-one".