73695142189 has 2 divisors, whose sum is σ = 73695142190. Its totient is φ = 73695142188.

The previous prime is 73695142187. The next prime is 73695142201. The reversal of 73695142189 is 98124159637.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62322626025 + 11372516164 = 249645^2 + 106642^2 .

It is a cyclic number.

It is not a de Polignac number, because 73695142189 - 2¹ = 73695142187 is a prime.

Together with 73695142187, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73695142187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36847571094 + 36847571095.

It is an arithmetic number, because the mean of its divisors is an integer number (36847571095).

Almost surely, 2^73695142189 is an apocalyptic number.

It is an amenable number.

73695142189 is a deficient number, since it is larger than the sum of its proper divisors (1).

73695142189 is an equidigital number, since it uses as much as digits as its factorization.

73695142189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3265920, while the sum is 55.

The spelling of 73695142189 in words is "seventy-three billion, six hundred ninety-five million, one hundred forty-two thousand, one hundred eighty-nine".