189008134294394 has 16 divisors (see below), whose sum is σ = 284784617594880. Its totient is φ = 94080086907360.

The previous prime is 189008134294387. The next prime is 189008134294403. The reversal of 189008134294394 is 493492431800981.

It is a self number, because there is not a number n which added to its sum of digits gives 189008134294394.

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, 37231352 + ... + 42002259.

It is an arithmetic number, because the mean of its divisors is an integer number (17799038599680).

Almost surely, 2^{189008134294394} is an apocalyptic number.

189008134294394 is a deficient number, since it is larger than the sum of its proper divisors (95776483300486).

189008134294394 is a wasteful number, since it uses less digits than its factorization.

189008134294394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79238965.

The product of its (nonzero) digits is 53747712, while the sum is 65.

The spelling of 189008134294394 in words is "one hundred eighty-nine trillion, eight billion, one hundred thirty-four million, two hundred ninety-four thousand, three hundred ninety-four".