3643406986061 has 4 divisors (see below), whose sum is σ = 3643928149824. Its totient is φ = 3642885822300.

The previous prime is 3643406986031. The next prime is 3643406986091. The reversal of 3643406986061 is 1606896043463.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (3643406986031) and next prime (3643406986091).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3643406986061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3643406985988 and 3643406986006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3643406986031) 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 3 ways as a sum of consecutive naturals, for example, 260571395 + ... + 260585376.

It is an arithmetic number, because the mean of its divisors is an integer number (910982037456).

Almost surely, 2^{3643406986061} is an apocalyptic number.

It is an amenable number.

3643406986061 is a deficient number, since it is larger than the sum of its proper divisors (521163763).

3643406986061 is an equidigital number, since it uses as much as digits as its factorization.

3643406986061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521163762.

The product of its (nonzero) digits is 13436928, while the sum is 56.

The spelling of 3643406986061 in words is "three trillion, six hundred forty-three billion, four hundred six million, nine hundred eighty-six thousand, sixty-one".