3681481862 has 4 divisors (see below), whose sum is σ = 5522222796. Its totient is φ = 1840740930.

The previous prime is 3681481861. The next prime is 3681481873. The reversal of 3681481862 is 2681841863.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3681481861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 920370464 + ... + 920370467.

It is an arithmetic number, because the mean of its divisors is an integer number (1380555699).

Almost surely, 2^3681481862 is an apocalyptic number.

3681481862 is a deficient number, since it is larger than the sum of its proper divisors (1840740934).

3681481862 is a wasteful number, since it uses less digits than its factorization.

3681481862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1840740933.

The product of its digits is 442368, while the sum is 47.

The square root of 3681481862 is about 60675.2162089267. The cubic root of 3681481862 is about 1544.0957290172.

The spelling of 3681481862 in words is "three billion, six hundred eighty-one million, four hundred eighty-one thousand, eight hundred sixty-two".