18900000679 has 8 divisors (see below), whose sum is σ = 21602846720. Its totient is φ = 16197866136.

The previous prime is 18900000677. The next prime is 18900000683. The reversal of 18900000679 is 97600000981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18900000679 - 2¹ = 18900000677 is a prime.

It is a super-2 number, since 2×18900000679² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18900000677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119679 + ... + 228304.

It is an arithmetic number, because the mean of its divisors is an integer number (2700355840).

Almost surely, 2^18900000679 is an apocalyptic number.

18900000679 is a deficient number, since it is larger than the sum of its proper divisors (2702846041).

18900000679 is an equidigital number, since it uses as much as digits as its factorization.

18900000679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355749.

The product of its (nonzero) digits is 27216, while the sum is 40.

The spelling of 18900000679 in words is "eighteen billion, nine hundred million, six hundred seventy-nine", and thus it is an aban number.