3613887406513 has 16 divisors (see below), whose sum is σ = 3671138370816. Its totient is φ = 3557098205440.

The previous prime is 3613887406501. The next prime is 3613887406529. The reversal of 3613887406513 is 3156047883163.

It is a happy number.

3613887406513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3613887406513 - 2³⁷ = 3476448453041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3613887406543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28684728 + ... + 28810438.

It is an arithmetic number, because the mean of its divisors is an integer number (229446148176).

Almost surely, 2^{3613887406513} is an apocalyptic number.

It is an amenable number.

3613887406513 is a deficient number, since it is larger than the sum of its proper divisors (57250964303).

3613887406513 is a wasteful number, since it uses less digits than its factorization.

3613887406513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127544.

The product of its (nonzero) digits is 8709120, while the sum is 55.

The spelling of 3613887406513 in words is "three trillion, six hundred thirteen billion, eight hundred eighty-seven million, four hundred six thousand, five hundred thirteen".