928191929109 has 16 divisors (see below), whose sum is σ = 1264420841472. Its totient is φ = 605512309248.

The previous prime is 928191929101. The next prime is 928191929141. The reversal of 928191929109 is 901929191829.

It is not a de Polignac number, because 928191929109 - 2³ = 928191929101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (928191929101) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 16658484 + ... + 16714109.

It is an arithmetic number, because the mean of its divisors is an integer number (79026302592).

Almost surely, 2^928191929109 is an apocalyptic number.

It is an amenable number.

928191929109 is a deficient number, since it is larger than the sum of its proper divisors (336228912363).

928191929109 is a wasteful number, since it uses less digits than its factorization.

928191929109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33372796.

The product of its (nonzero) digits is 1889568, while the sum is 60.

The spelling of 928191929109 in words is "nine hundred twenty-eight billion, one hundred ninety-one million, nine hundred twenty-nine thousand, one hundred nine".