43254099971 has 2 divisors, whose sum is σ = 43254099972. Its totient is φ = 43254099970.

The previous prime is 43254099949. The next prime is 43254100063. The reversal of 43254099971 is 17999045234.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43254099971 - 2⁶ = 43254099907 is a prime.

It is not a weakly prime, because it can be changed into another prime (43254099071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21627049985 + 21627049986.

It is an arithmetic number, because the mean of its divisors is an integer number (21627049986).

Almost surely, 2^43254099971 is an apocalyptic number.

43254099971 is a deficient number, since it is larger than the sum of its proper divisors (1).

43254099971 is an equidigital number, since it uses as much as digits as its factorization.

43254099971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2449440, while the sum is 53.

The spelling of 43254099971 in words is "forty-three billion, two hundred fifty-four million, ninety-nine thousand, nine hundred seventy-one".