18419929060 has 72 divisors (see below), whose sum is σ = 43045096248. Its totient is φ = 6581721600.

The previous prime is 18419929027. The next prime is 18419929067. The reversal of 18419929060 is 6092991481.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 553536 + 18419375524 = 744^2 + 135718^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18419928995 and 18419929013.

It is not an unprimeable number, because it can be changed into a prime (18419929067) 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 23 ways as a sum of consecutive naturals, for example, 213000 + ... + 286720.

It is an arithmetic number, because the mean of its divisors is an integer number (597848559).

Almost surely, 2^18419929060 is an apocalyptic number.

18419929060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18419929060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21522548124).

18419929060 is an abundant number, since it is smaller than the sum of its proper divisors (24625167188).

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

18419929060 is a wasteful number, since it uses less digits than its factorization.

18419929060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73805 (or 73772 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 49.

The spelling of 18419929060 in words is "eighteen billion, four hundred nineteen million, nine hundred twenty-nine thousand, sixty".