18642612323470 has 16 divisors (see below), whose sum is σ = 35015689234080. Its totient is φ = 7132825584544.

The previous prime is 18642612323459. The next prime is 18642612323473. The reversal of 18642612323470 is 7432321624681.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18642612323473) 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 in 7 ways as a sum of consecutive naturals, for example, 40527417865 + ... + 40527418324.

It is an arithmetic number, because the mean of its divisors is an integer number (2188480577130).

Almost surely, 2^{18642612323470} is an apocalyptic number.

18642612323470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18642612323470 is a deficient number, since it is larger than the sum of its proper divisors (16373076910610).

18642612323470 is a wasteful number, since it uses less digits than its factorization.

18642612323470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81054836219.

The product of its (nonzero) digits is 2322432, while the sum is 49.

The spelling of 18642612323470 in words is "eighteen trillion, six hundred forty-two billion, six hundred twelve million, three hundred twenty-three thousand, four hundred seventy".