18736412860 has 24 divisors (see below), whose sum is σ = 42923419056. Its totient is φ = 6813240960.

The previous prime is 18736412831. The next prime is 18736412873. The reversal of 18736412860 is 6821463781.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 18736412860.

It is a congruent number.

It is an unprimeable number.

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, 42582537 + ... + 42582976.

It is an arithmetic number, because the mean of its divisors is an integer number (1788475794).

Almost surely, 2^18736412860 is an apocalyptic number.

18736412860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18736412860 is an abundant number, since it is smaller than the sum of its proper divisors (24187006196).

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

18736412860 is a wasteful number, since it uses less digits than its factorization.

18736412860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85165533 (or 85165531 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 18736412860 in words is "eighteen billion, seven hundred thirty-six million, four hundred twelve thousand, eight hundred sixty".