18938228940334 has 16 divisors (see below), whose sum is σ = 31016706778800. Its totient is φ = 8600819880960.

The previous prime is 18938228940307. The next prime is 18938228940373. The reversal of 18938228940334 is 43304982283981.

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, 373274109 + ... + 373324840.

It is an arithmetic number, because the mean of its divisors is an integer number (1938544173675).

Almost surely, 2^{18938228940334} is an apocalyptic number.

18938228940334 is a deficient number, since it is larger than the sum of its proper divisors (12078477838466).

18938228940334 is a wasteful number, since it uses less digits than its factorization.

18938228940334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746600115.

The product of its (nonzero) digits is 71663616, while the sum is 64.

The spelling of 18938228940334 in words is "eighteen trillion, nine hundred thirty-eight billion, two hundred twenty-eight million, nine hundred forty thousand, three hundred thirty-four".