4791353681 has 4 divisors (see below), whose sum is σ = 4818121200. Its totient is φ = 4764586164.

The previous prime is 4791353663. The next prime is 4791353783. The reversal of 4791353681 is 1863531974.

It is a happy number.

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 not a de Polignac number, because 4791353681 - 2¹⁴ = 4791337297 is a prime.

It is a super-2 number, since 2×4791353681² = 45914140192864499522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4791353381) 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, 13383491 + ... + 13383848.

It is an arithmetic number, because the mean of its divisors is an integer number (1204530300).

Almost surely, 2^4791353681 is an apocalyptic number.

It is an amenable number.

4791353681 is a deficient number, since it is larger than the sum of its proper divisors (26767519).

4791353681 is a wasteful number, since it uses less digits than its factorization.

4791353681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26767518.

The product of its digits is 544320, while the sum is 47.

The square root of 4791353681 is about 69219.6047446097. The cubic root of 4791353681 is about 1685.8518624064.

The spelling of 4791353681 in words is "four billion, seven hundred ninety-one million, three hundred fifty-three thousand, six hundred eighty-one".