43947380783 has 2 divisors, whose sum is σ = 43947380784. Its totient is φ = 43947380782.

The previous prime is 43947380717. The next prime is 43947380791. The reversal of 43947380783 is 38708374934.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43947380783 - 2¹² = 43947376687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43947380713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21973690391 + 21973690392.

It is an arithmetic number, because the mean of its divisors is an integer number (21973690392).

Almost surely, 2^43947380783 is an apocalyptic number.

43947380783 is a deficient number, since it is larger than the sum of its proper divisors (1).

43947380783 is an equidigital number, since it uses as much as digits as its factorization.

43947380783 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12192768, while the sum is 56.

The spelling of 43947380783 in words is "forty-three billion, nine hundred forty-seven million, three hundred eighty thousand, seven hundred eighty-three".