3451871491 has 2 divisors, whose sum is σ = 3451871492. Its totient is φ = 3451871490.

The previous prime is 3451871459. The next prime is 3451871543. The reversal of 3451871491 is 1941781543.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3451871491 - 2⁵ = 3451871459 is a prime.

It is not a weakly prime, because it can be changed into another prime (3451871191) 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, 1725935745 + 1725935746.

It is an arithmetic number, because the mean of its divisors is an integer number (1725935746).

Almost surely, 2^3451871491 is an apocalyptic number.

3451871491 is a deficient number, since it is larger than the sum of its proper divisors (1).

3451871491 is an equidigital number, since it uses as much as digits as its factorization.

3451871491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 43.

The square root of 3451871491 is about 58752.6296517867. The cubic root of 3451871491 is about 1511.3029834814.

The spelling of 3451871491 in words is "three billion, four hundred fifty-one million, eight hundred seventy-one thousand, four hundred ninety-one".