3626125563661 has 2 divisors, whose sum is σ = 3626125563662. Its totient is φ = 3626125563660.

The previous prime is 3626125563611. The next prime is 3626125563667. The reversal of 3626125563661 is 1663655216263.

3626125563661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2243869182025 + 1382256381636 = 1497955^2 + 1175694^2 .

It is an emirp because it is prime and its reverse (1663655216263) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3626125563661 - 2¹⁵ = 3626125530893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3626125563599 and 3626125563608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3626125563667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1813062781830 + 1813062781831.

It is an arithmetic number, because the mean of its divisors is an integer number (1813062781831).

Almost surely, 2^{3626125563661} is an apocalyptic number.

It is an amenable number.

3626125563661 is a deficient number, since it is larger than the sum of its proper divisors (1).

3626125563661 is an equidigital number, since it uses as much as digits as its factorization.

3626125563661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6998400, while the sum is 52.

The spelling of 3626125563661 in words is "three trillion, six hundred twenty-six billion, one hundred twenty-five million, five hundred sixty-three thousand, six hundred sixty-one".