3620389893121 has 2 divisors, whose sum is σ = 3620389893122. Its totient is φ = 3620389893120.

The previous prime is 3620389893089. The next prime is 3620389893173. The reversal of 3620389893121 is 1213989830263.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2689288409025 + 931101484096 = 1639905^2 + 964936^2 .

It is a cyclic number.

It is not a de Polignac number, because 3620389893121 - 2⁵ = 3620389893089 is a prime.

It is not a weakly prime, because it can be changed into another prime (3620389893181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1810194946560 + 1810194946561.

It is an arithmetic number, because the mean of its divisors is an integer number (1810194946561).

Almost surely, 2^{3620389893121} is an apocalyptic number.

It is an amenable number.

3620389893121 is a deficient number, since it is larger than the sum of its proper divisors (1).

3620389893121 is an equidigital number, since it uses as much as digits as its factorization.

3620389893121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3359232, while the sum is 55.

It can be divided in two parts, 3620389 and 893121, that added together give a triangular number (4513510 = T₃₀₀₄).

The spelling of 3620389893121 in words is "three trillion, six hundred twenty billion, three hundred eighty-nine million, eight hundred ninety-three thousand, one hundred twenty-one".