5204761681 has 4 divisors (see below), whose sum is σ = 5948299072. Its totient is φ = 4461224292.

The previous prime is 5204761649. The next prime is 5204761691. The reversal of 5204761681 is 1861674025.

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 not a de Polignac number, because 5204761681 - 2⁵ = 5204761649 is a prime.

It is a super-2 number, since 2×5204761681² = 54179088312011891522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5204761691) 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, 371768685 + ... + 371768698.

It is an arithmetic number, because the mean of its divisors is an integer number (1487074768).

Almost surely, 2^5204761681 is an apocalyptic number.

It is an amenable number.

5204761681 is a deficient number, since it is larger than the sum of its proper divisors (743537391).

5204761681 is an equidigital number, since it uses as much as digits as its factorization.

5204761681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743537390.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 5204761681 is about 72144.0342717262. The cubic root of 5204761681 is about 1733.0068640031.

The spelling of 5204761681 in words is "five billion, two hundred four million, seven hundred sixty-one thousand, six hundred eighty-one".