43975666967 has 2 divisors, whose sum is σ = 43975666968. Its totient is φ = 43975666966.

The previous prime is 43975666939. The next prime is 43975667003. The reversal of 43975666967 is 76966657934.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43975666967 - 2³² = 39680699671 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43975666897 and 43975666906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43975666367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21987833483 + 21987833484.

It is an arithmetic number, because the mean of its divisors is an integer number (21987833484).

Almost surely, 2^43975666967 is an apocalyptic number.

43975666967 is a deficient number, since it is larger than the sum of its proper divisors (1).

43975666967 is an equidigital number, since it uses as much as digits as its factorization.

43975666967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 308629440, while the sum is 68.

The spelling of 43975666967 in words is "forty-three billion, nine hundred seventy-five million, six hundred sixty-six thousand, nine hundred sixty-seven".