89742943907 has 2 divisors, whose sum is σ = 89742943908. Its totient is φ = 89742943906.

The previous prime is 89742943897. The next prime is 89742943909. The reversal of 89742943907 is 70934924798.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89742943907 - 2²² = 89738749603 is a prime.

Together with 89742943909, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89742943907.

It is not a weakly prime, because it can be changed into another prime (89742943909) 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, 44871471953 + 44871471954.

It is an arithmetic number, because the mean of its divisors is an integer number (44871471954).

Almost surely, 2^89742943907 is an apocalyptic number.

89742943907 is a deficient number, since it is larger than the sum of its proper divisors (1).

89742943907 is an equidigital number, since it uses as much as digits as its factorization.

89742943907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27433728, while the sum is 62.

The spelling of 89742943907 in words is "eighty-nine billion, seven hundred forty-two million, nine hundred forty-three thousand, nine hundred seven".