373664447543 has 2 divisors, whose sum is σ = 373664447544. Its totient is φ = 373664447542.

The previous prime is 373664447501. The next prime is 373664447573. The reversal of 373664447543 is 345744466373.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 373664447543 - 2⁶ = 373664447479 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (373664447573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186832223771 + 186832223772.

It is an arithmetic number, because the mean of its divisors is an integer number (186832223772).

Almost surely, 2^373664447543 is an apocalyptic number.

373664447543 is a deficient number, since it is larger than the sum of its proper divisors (1).

373664447543 is an equidigital number, since it uses as much as digits as its factorization.

373664447543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60963840, while the sum is 56.

The spelling of 373664447543 in words is "three hundred seventy-three billion, six hundred sixty-four million, four hundred forty-seven thousand, five hundred forty-three".