4609967681 has 4 divisors (see below), whose sum is σ = 5029055664. Its totient is φ = 4190879700.

The previous prime is 4609967653. The next prime is 4609967711. The reversal of 4609967681 is 1867699064.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4609967681 is a prime.

It is a super-2 number, since 2×4609967681² = 42503604039729035522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4609967581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209543975 + ... + 209543996.

It is an arithmetic number, because the mean of its divisors is an integer number (1257263916).

Almost surely, 2^4609967681 is an apocalyptic number.

It is an amenable number.

4609967681 is a deficient number, since it is larger than the sum of its proper divisors (419087983).

4609967681 is a wasteful number, since it uses less digits than its factorization.

4609967681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419087982.

The product of its (nonzero) digits is 3919104, while the sum is 56.

The square root of 4609967681 is about 67896.7427863811. The cubic root of 4609967681 is about 1664.3038847710.

The spelling of 4609967681 in words is "four billion, six hundred nine million, nine hundred sixty-seven thousand, six hundred eighty-one".