3445450523891 has 2 divisors, whose sum is σ = 3445450523892. Its totient is φ = 3445450523890.

The previous prime is 3445450523887. The next prime is 3445450523917. The reversal of 3445450523891 is 1983250545443.

It is a happy number.

3445450523891 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 3445450523891 - 2² = 3445450523887 is a prime.

It is a super-2 number, since 2×3445450523891² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3445450523191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1722725261945 + 1722725261946.

It is an arithmetic number, because the mean of its divisors is an integer number (1722725261946).

Almost surely, 2^{3445450523891} is an apocalyptic number.

3445450523891 is a deficient number, since it is larger than the sum of its proper divisors (1).

3445450523891 is an equidigital number, since it uses as much as digits as its factorization.

3445450523891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368000, while the sum is 53.

The spelling of 3445450523891 in words is "three trillion, four hundred forty-five billion, four hundred fifty million, five hundred twenty-three thousand, eight hundred ninety-one".