18890438107294 has 16 divisors (see below), whose sum is σ = 30552491612160. Its totient is φ = 8708044165920.

The previous prime is 18890438107259. The next prime is 18890438107349. The reversal of 18890438107294 is 49270183409881.

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, 442460574 + ... + 442503265.

It is an arithmetic number, because the mean of its divisors is an integer number (1909530725760).

Almost surely, 2^{18890438107294} is an apocalyptic number.

18890438107294 is a deficient number, since it is larger than the sum of its proper divisors (11662053504866).

18890438107294 is a wasteful number, since it uses less digits than its factorization.

18890438107294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884964675.

The product of its (nonzero) digits is 27869184, while the sum is 64.

The spelling of 18890438107294 in words is "eighteen trillion, eight hundred ninety billion, four hundred thirty-eight million, one hundred seven thousand, two hundred ninety-four".