4781681709 has 32 divisors (see below), whose sum is σ = 7524787200. Its totient is φ = 2699420976.

The previous prime is 4781681701. The next prime is 4781681771. The reversal of 4781681709 is 9071861874.

It is not a de Polignac number, because 4781681709 - 2³ = 4781681701 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4781681701) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57414 + ... + 113400.

It is an arithmetic number, because the mean of its divisors is an integer number (235149600).

Almost surely, 2^4781681709 is an apocalyptic number.

4781681709 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

4781681709 is a deficient number, since it is larger than the sum of its proper divisors (2743105491).

4781681709 is an equidigital number, since it uses as much as digits as its factorization.

4781681709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56094 (or 56080 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 51.

The square root of 4781681709 is about 69149.7050536009. The cubic root of 4781681709 is about 1684.7167276743.

The spelling of 4781681709 in words is "four billion, seven hundred eighty-one million, six hundred eighty-one thousand, seven hundred nine".