3641615654461 has 2 divisors, whose sum is σ = 3641615654462. Its totient is φ = 3641615654460.

The previous prime is 3641615654387. The next prime is 3641615654471. The reversal of 3641615654461 is 1644565161463.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3397732770436 + 243882884025 = 1843294^2 + 493845^2 .

It is a cyclic number.

It is not a de Polignac number, because 3641615654461 - 2¹⁹ = 3641615130173 is a prime.

It is a super-2 number, since 2×3641615654461² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3641615654399 and 3641615654408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3641615654471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1820807827230 + 1820807827231.

It is an arithmetic number, because the mean of its divisors is an integer number (1820807827231).

Almost surely, 2^{3641615654461} is an apocalyptic number.

It is an amenable number.

3641615654461 is a deficient number, since it is larger than the sum of its proper divisors (1).

3641615654461 is an equidigital number, since it uses as much as digits as its factorization.

3641615654461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6220800, while the sum is 52.

The spelling of 3641615654461 in words is "three trillion, six hundred forty-one billion, six hundred fifteen million, six hundred fifty-four thousand, four hundred sixty-one".