18679420360 has 16 divisors (see below), whose sum is σ = 42028695900. Its totient is φ = 7471768128.

The previous prime is 18679420351. The next prime is 18679420367. The reversal of 18679420360 is 6302497681.

It can be written as a sum of positive squares in 2 ways, for example, as 16337441124 + 2341979236 = 127818^2 + 48394^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18679420360.

It is not an unprimeable number, because it can be changed into a prime (18679420367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233492715 + ... + 233492794.

Almost surely, 2^18679420360 is an apocalyptic number.

18679420360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18679420360 is an abundant number, since it is smaller than the sum of its proper divisors (23349275540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18679420360 is a wasteful number, since it uses less digits than its factorization.

18679420360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466985520 (or 466985516 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 18679420360 in words is "eighteen billion, six hundred seventy-nine million, four hundred twenty thousand, three hundred sixty".