4645917681 has 8 divisors (see below), whose sum is σ = 6195482400. Its totient is φ = 3096815712.

The previous prime is 4645917659. The next prime is 4645917701. The reversal of 4645917681 is 1867195464.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4645917681 - 2⁹ = 4645917169 is a prime.

It is a super-2 number, since 2×4645917681² = 43169102197256835522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4644917681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91540 + ... + 132933.

It is an arithmetic number, because the mean of its divisors is an integer number (774435300).

Almost surely, 2^4645917681 is an apocalyptic number.

It is an amenable number.

4645917681 is a deficient number, since it is larger than the sum of its proper divisors (1549564719).

4645917681 is a wasteful number, since it uses less digits than its factorization.

4645917681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231375.

The product of its digits is 1451520, while the sum is 51.

The square root of 4645917681 is about 68160.9688971628. The cubic root of 4645917681 is about 1668.6189451035.

The spelling of 4645917681 in words is "four billion, six hundred forty-five million, nine hundred seventeen thousand, six hundred eighty-one".