8432654681 has 24 divisors (see below), whose sum is σ = 9394486920. Its totient is φ = 7562635520.

The previous prime is 8432654669. The next prime is 8432654693. The reversal of 8432654681 is 1864562348.

It is an interprime number because it is at equal distance from previous prime (8432654669) and next prime (8432654693).

It can be written as a sum of positive squares in 4 ways, for example, as 1332907081 + 7099747600 = 36509^2 + 84260^2 .

It is a de Polignac number, because none of the positive numbers 2^k-8432654681 is a prime.

It is a super-2 number, since 2×8432654681² (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 (8432644681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8323931 + ... + 8324943.

It is an arithmetic number, because the mean of its divisors is an integer number (391436955).

Almost surely, 2^8432654681 is an apocalyptic number.

It is an amenable number.

8432654681 is a deficient number, since it is larger than the sum of its proper divisors (961832239).

8432654681 is a wasteful number, since it uses less digits than its factorization.

8432654681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1897 (or 1886 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 47.

The square root of 8432654681 is about 91829.4869908354. The cubic root of 8432654681 is about 2035.4234424416.

The spelling of 8432654681 in words is "eight billion, four hundred thirty-two million, six hundred fifty-four thousand, six hundred eighty-one".