8411551681 has 8 divisors (see below), whose sum is σ = 9065564480. Its totient is φ = 7758534672.

The previous prime is 8411551679. The next prime is 8411551723. The reversal of 8411551681 is 1861551148.

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 8411551681 - 2¹ = 8411551679 is a prime.

It is a super-2 number, since 2×8411551681² (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 (8411551481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231351 + ... + 265228.

It is an arithmetic number, because the mean of its divisors is an integer number (1133195560).

Almost surely, 2^8411551681 is an apocalyptic number.

It is an amenable number.

8411551681 is a deficient number, since it is larger than the sum of its proper divisors (654012799).

8411551681 is a wasteful number, since it uses less digits than its factorization.

8411551681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497895.

The product of its digits is 38400, while the sum is 40.

The square root of 8411551681 is about 91714.5118342784. The cubic root of 8411551681 is about 2033.7241190644.

The spelling of 8411551681 in words is "eight billion, four hundred eleven million, five hundred fifty-one thousand, six hundred eighty-one".