3618804426331 has 2 divisors, whose sum is σ = 3618804426332. Its totient is φ = 3618804426330.

The previous prime is 3618804426271. The next prime is 3618804426407. The reversal of 3618804426331 is 1336244088163.

3618804426331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3618804426331 - 2¹¹ = 3618804424283 is a prime.

It is a super-2 number, since 2×3618804426331² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3618804426431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1809402213165 + 1809402213166.

It is an arithmetic number, because the mean of its divisors is an integer number (1809402213166).

Almost surely, 2^{3618804426331} is an apocalyptic number.

3618804426331 is a deficient number, since it is larger than the sum of its proper divisors (1).

3618804426331 is an equidigital number, since it uses as much as digits as its factorization.

3618804426331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1990656, while the sum is 49.

The spelling of 3618804426331 in words is "three trillion, six hundred eighteen billion, eight hundred four million, four hundred twenty-six thousand, three hundred thirty-one".