1928684372139 has 24 divisors (see below), whose sum is σ = 3184202391552. Its totient is φ = 1101986806320.

The previous prime is 1928684372129. The next prime is 1928684372201. The reversal of 1928684372139 is 9312734868291.

1928684372139 is a `hidden beast` number, since 1 + 9 + 2 + 8 + 68 + 437 + 2 + 139 = 666.

It is not a de Polignac number, because 1928684372139 - 2¹⁹ = 1928683847851 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (1928684372129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1054507 + ... + 2229204.

It is an arithmetic number, because the mean of its divisors is an integer number (132675099648).

Almost surely, 2^{1928684372139} is an apocalyptic number.

1928684372139 is a deficient number, since it is larger than the sum of its proper divisors (1255518019413).

1928684372139 is a wasteful number, since it uses less digits than its factorization.

1928684372139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3293047 (or 3293044 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 63.

The spelling of 1928684372139 in words is "one trillion, nine hundred twenty-eight billion, six hundred eighty-four million, three hundred seventy-two thousand, one hundred thirty-nine".