18858410513420 has 24 divisors (see below), whose sum is σ = 39611449190544. Its totient is φ = 7541690469696.

The previous prime is 18858410513413. The next prime is 18858410513431. The reversal of 18858410513420 is 2431501485881.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 104516087 + ... + 104696366.

It is an arithmetic number, because the mean of its divisors is an integer number (1650477049606).

Almost surely, 2^{18858410513420} is an apocalyptic number.

18858410513420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18858410513420 is an abundant number, since it is smaller than the sum of its proper divisors (20753038677124).

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

18858410513420 is a wasteful number, since it uses less digits than its factorization.

18858410513420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209216969 (or 209216967 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 50.

The spelling of 18858410513420 in words is "eighteen trillion, eight hundred fifty-eight billion, four hundred ten million, five hundred thirteen thousand, four hundred twenty".