18642211261058 has 96 divisors (see below), whose sum is σ = 36366637765248. Its totient is φ = 7083082809600.

The previous prime is 18642211261057. The next prime is 18642211261061. The reversal of 18642211261058 is 85016211224681.

It is not an unprimeable number, because it can be changed into a prime (18642211261057) 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 47 ways as a sum of consecutive naturals, for example, 107004716 + ... + 107178792.

It is an arithmetic number, because the mean of its divisors is an integer number (378819143388).

Almost surely, 2^{18642211261058} is an apocalyptic number.

18642211261058 is a deficient number, since it is larger than the sum of its proper divisors (17724426504190).

18642211261058 is a wasteful number, since it uses less digits than its factorization.

18642211261058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176568 (or 176561 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 47.

The spelling of 18642211261058 in words is "eighteen trillion, six hundred forty-two billion, two hundred eleven million, two hundred sixty-one thousand, fifty-eight".