189851076029109 has 16 divisors (see below), whose sum is σ = 280827477642240. Its totient is φ = 113111067381360.

The previous prime is 189851076029107. The next prime is 189851076029257. The reversal of 189851076029109 is 901920670158981.

It is not a de Polignac number, because 189851076029109 - 2¹ = 189851076029107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189851076029109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189851076029107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48754768477 + ... + 48754772370.

It is an arithmetic number, because the mean of its divisors is an integer number (17551717352640).

Almost surely, 2^{189851076029109} is an apocalyptic number.

It is an amenable number.

189851076029109 is a deficient number, since it is larger than the sum of its proper divisors (90976401613131).

189851076029109 is a wasteful number, since it uses less digits than its factorization.

189851076029109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97509540920.

The product of its (nonzero) digits is 19595520, while the sum is 66.

The spelling of 189851076029109 in words is "one hundred eighty-nine trillion, eight hundred fifty-one billion, seventy-six million, twenty-nine thousand, one hundred nine".