3639918637413 has 12 divisors (see below), whose sum is σ = 5534379215040. Its totient is φ = 2298895981416.

The previous prime is 3639918637361. The next prime is 3639918637441. The reversal of 3639918637413 is 3147368199363.

3639918637413 is a `hidden beast` number, since 3 + 6 + 3 + 9 + 9 + 186 + 37 + 413 = 666.

It is not a de Polignac number, because 3639918637413 - 2²¹ = 3639916540261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3639918637483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10643036781 + ... + 10643037122.

It is an arithmetic number, because the mean of its divisors is an integer number (461198267920).

Almost surely, 2^{3639918637413} is an apocalyptic number.

It is an amenable number.

3639918637413 is a deficient number, since it is larger than the sum of its proper divisors (1894460577627).

3639918637413 is a wasteful number, since it uses less digits than its factorization.

3639918637413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21286073928 (or 21286073925 counting only the distinct ones).

The product of its digits is 52907904, while the sum is 63.

The spelling of 3639918637413 in words is "three trillion, six hundred thirty-nine billion, nine hundred eighteen million, six hundred thirty-seven thousand, four hundred thirteen".