64246122189 has 16 divisors (see below), whose sum is σ = 95874186240. Its totient is φ = 42518112480.

The previous prime is 64246122173. The next prime is 64246122209. The reversal of 64246122189 is 98122164246.

It is a happy number.

64246122189 is a `hidden beast` number, since 6 + 4 + 2 + 4 + 612 + 21 + 8 + 9 = 666.

It is not a de Polignac number, because 64246122189 - 2⁴ = 64246122173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64246122289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8680557 + ... + 8687954.

It is an arithmetic number, because the mean of its divisors is an integer number (5992136640).

Almost surely, 2^64246122189 is an apocalyptic number.

It is an amenable number.

64246122189 is a deficient number, since it is larger than the sum of its proper divisors (31628064051).

64246122189 is a wasteful number, since it uses less digits than its factorization.

64246122189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17368657 (or 17368651 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The spelling of 64246122189 in words is "sixty-four billion, two hundred forty-six million, one hundred twenty-two thousand, one hundred eighty-nine".