1889272989194 has 16 divisors (see below), whose sum is σ = 3052514004480. Its totient is φ = 874418072880.

The previous prime is 1889272989181. The next prime is 1889272989281. The reversal of 1889272989194 is 4919892729881.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 662436509 + ... + 662439360.

It is an arithmetic number, because the mean of its divisors is an integer number (190782125280).

Almost surely, 2^{1889272989194} is an apocalyptic number.

1889272989194 is a deficient number, since it is larger than the sum of its proper divisors (1163241015286).

1889272989194 is a wasteful number, since it uses less digits than its factorization.

1889272989194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324875925.

The product of its digits is 376233984, while the sum is 77.

The spelling of 1889272989194 in words is "one trillion, eight hundred eighty-nine billion, two hundred seventy-two million, nine hundred eighty-nine thousand, one hundred ninety-four".