3681602421015 has 16 divisors (see below), whose sum is σ = 6237067631328. Its totient is φ = 1848020038656.

The previous prime is 3681602421011. The next prime is 3681602421023. The reversal of 3681602421015 is 5101242061863.

It is not a de Polignac number, because 3681602421015 - 2² = 3681602421011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3681602421011) 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 in 15 ways as a sum of consecutive naturals, for example, 7218828022 + ... + 7218828531.

It is an arithmetic number, because the mean of its divisors is an integer number (389816726958).

Almost surely, 2^{3681602421015} is an apocalyptic number.

3681602421015 is a deficient number, since it is larger than the sum of its proper divisors (2555465210313).

3681602421015 is a wasteful number, since it uses less digits than its factorization.

3681602421015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14437656578.

The product of its (nonzero) digits is 69120, while the sum is 39.

Adding to 3681602421015 its reverse (5101242061863), we get a palindrome (8782844482878).

The spelling of 3681602421015 in words is "three trillion, six hundred eighty-one billion, six hundred two million, four hundred twenty-one thousand, fifteen".