3551340968429 has 2 divisors, whose sum is σ = 3551340968430. Its totient is φ = 3551340968428.

The previous prime is 3551340968407. The next prime is 3551340968443. The reversal of 3551340968429 is 9248690431553.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1909606153225 + 1641734815204 = 1381885^2 + 1281302^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3551340968429 is a prime.

It is a super-2 number, since 2×3551340968429² (a number of 26 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3551340968489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1775670484214 + 1775670484215.

It is an arithmetic number, because the mean of its divisors is an integer number (1775670484215).

Almost surely, 2^{3551340968429} is an apocalyptic number.

It is an amenable number.

3551340968429 is a deficient number, since it is larger than the sum of its proper divisors (1).

3551340968429 is an equidigital number, since it uses as much as digits as its factorization.

3551340968429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27993600, while the sum is 59.

The spelling of 3551340968429 in words is "three trillion, five hundred fifty-one billion, three hundred forty million, nine hundred sixty-eight thousand, four hundred twenty-nine".