5551474069447 has 2 divisors, whose sum is σ = 5551474069448. Its totient is φ = 5551474069446.

The previous prime is 5551474069391. The next prime is 5551474069457. The reversal of 5551474069447 is 7449604741555.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5551474069447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5551474069457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2775737034723 + 2775737034724.

It is an arithmetic number, because the mean of its divisors is an integer number (2775737034724).

Almost surely, 2^{5551474069447} is an apocalyptic number.

5551474069447 is a deficient number, since it is larger than the sum of its proper divisors (1).

5551474069447 is an equidigital number, since it uses as much as digits as its factorization.

5551474069447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672000, while the sum is 61.

The spelling of 5551474069447 in words is "five trillion, five hundred fifty-one billion, four hundred seventy-four million, sixty-nine thousand, four hundred forty-seven".