18940055054998 has 16 divisors (see below), whose sum is σ = 35420362700544. Its totient is φ = 7379242229160.

The previous prime is 18940055054971. The next prime is 18940055055011. The reversal of 18940055054998 is 89945055004981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61493685090 + ... + 61493685397.

It is an arithmetic number, because the mean of its divisors is an integer number (2213772668784).

Almost surely, 2^{18940055054998} is an apocalyptic number.

18940055054998 is a deficient number, since it is larger than the sum of its proper divisors (16480307645546).

18940055054998 is a wasteful number, since it uses less digits than its factorization.

18940055054998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122987370507.

The product of its (nonzero) digits is 93312000, while the sum is 67.

The spelling of 18940055054998 in words is "eighteen trillion, nine hundred forty billion, fifty-five million, fifty-four thousand, nine hundred ninety-eight".