189782734774 has 16 divisors (see below), whose sum is σ = 292415130000. Its totient is φ = 92311851744.

The previous prime is 189782734723. The next prime is 189782734871. The reversal of 189782734774 is 477437287981.

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, 262552 + ... + 669700.

It is an arithmetic number, because the mean of its divisors is an integer number (18275945625).

Almost surely, 2^189782734774 is an apocalyptic number.

189782734774 is a deficient number, since it is larger than the sum of its proper divisors (102632395226).

189782734774 is a wasteful number, since it uses less digits than its factorization.

189782734774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413487.

The product of its digits is 132765696, while the sum is 67.

The spelling of 189782734774 in words is "one hundred eighty-nine billion, seven hundred eighty-two million, seven hundred thirty-four thousand, seven hundred seventy-four".