18895229079 has 32 divisors (see below), whose sum is σ = 27268800000. Its totient is φ = 11597468544.

The previous prime is 18895229069. The next prime is 18895229147. The reversal of 18895229079 is 97092259881.

It is not a de Polignac number, because 18895229079 - 2⁴ = 18895229063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18895229039) 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 31 ways as a sum of consecutive naturals, for example, 1933297 + ... + 1943045.

It is an arithmetic number, because the mean of its divisors is an integer number (852150000).

Almost surely, 2^18895229079 is an apocalyptic number.

18895229079 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

18895229079 is a deficient number, since it is larger than the sum of its proper divisors (8373570921).

18895229079 is a wasteful number, since it uses less digits than its factorization.

18895229079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10727.

The product of its (nonzero) digits is 6531840, while the sum is 60.

The spelling of 18895229079 in words is "eighteen billion, eight hundred ninety-five million, two hundred twenty-nine thousand, seventy-nine".