18602157193842 has 64 divisors (see below), whose sum is σ = 37770296215680. Its totient is φ = 6106983168000.

The previous prime is 18602157193799. The next prime is 18602157193861. The reversal of 18602157193842 is 24839175120681.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142108342 + ... + 142239182.

It is an arithmetic number, because the mean of its divisors is an integer number (590160878370).

It is a 1-persistent number, because it is pandigital, but 2⋅18602157193842 = 37204314387684 is not.

Almost surely, 2^{18602157193842} is an apocalyptic number.

18602157193842 is an abundant number, since it is smaller than the sum of its proper divisors (19168139021838).

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

18602157193842 is a wasteful number, since it uses less digits than its factorization.

18602157193842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131979.

The product of its (nonzero) digits is 5806080, while the sum is 57.

The spelling of 18602157193842 in words is "eighteen trillion, six hundred two billion, one hundred fifty-seven million, one hundred ninety-three thousand, eight hundred forty-two".