3551642993 has 2 divisors, whose sum is σ = 3551642994. Its totient is φ = 3551642992.

The previous prime is 3551642981. The next prime is 3551643037. The reversal of 3551642993 is 3992461553.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3545964304 + 5678689 = 59548^2 + 2383^2 .

It is a cyclic number.

It is not a de Polignac number, because 3551642993 - 2⁴ = 3551642977 is a prime.

It is a super-2 number, since 2×3551642993² = 25228335899451996098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3551642953) 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, 1775821496 + 1775821497.

It is an arithmetic number, because the mean of its divisors is an integer number (1775821497).

Almost surely, 2^3551642993 is an apocalyptic number.

It is an amenable number.

3551642993 is a deficient number, since it is larger than the sum of its proper divisors (1).

3551642993 is an equidigital number, since it uses as much as digits as its factorization.

3551642993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 874800, while the sum is 47.

The square root of 3551642993 is about 59595.6625351208. The cubic root of 3551642993 is about 1525.7256054989.

The spelling of 3551642993 in words is "three billion, five hundred fifty-one million, six hundred forty-two thousand, nine hundred ninety-three".