3681456877 has 6 divisors (see below), whose sum is σ = 4282511118. Its totient is φ = 3155534424.

The previous prime is 3681456869. The next prime is 3681456887. The reversal of 3681456877 is 7786541863.

It can be written as a sum of positive squares in only one way, i.e., 3680727561 + 729316 = 60669^2 + 854^2 .

It is not a de Polignac number, because 3681456877 - 2³ = 3681456869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3681456847) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37565838 + ... + 37565935.

It is an arithmetic number, because the mean of its divisors is an integer number (713751853).

Almost surely, 2^3681456877 is an apocalyptic number.

It is an amenable number.

3681456877 is a deficient number, since it is larger than the sum of its proper divisors (601054241).

3681456877 is an equidigital number, since it uses as much as digits as its factorization.

3681456877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75131787 (or 75131780 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 55.

The square root of 3681456877 is about 60675.0103172632. The cubic root of 3681456877 is about 1544.0922359203.

The spelling of 3681456877 in words is "three billion, six hundred eighty-one million, four hundred fifty-six thousand, eight hundred seventy-seven".