1928311373863 has 4 divisors (see below), whose sum is σ = 2203784427280. Its totient is φ = 1652838320448.

The previous prime is 1928311373851. The next prime is 1928311373941. The reversal of 1928311373863 is 3683731138291.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1928311373863 - 2⁵ = 1928311373831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1928311373663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137736526698 + ... + 137736526711.

It is an arithmetic number, because the mean of its divisors is an integer number (550946106820).

Almost surely, 2^{1928311373863} is an apocalyptic number.

1928311373863 is a deficient number, since it is larger than the sum of its proper divisors (275473053417).

1928311373863 is an equidigital number, since it uses as much as digits as its factorization.

1928311373863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275473053416.

The product of its digits is 3919104, while the sum is 55.

The spelling of 1928311373863 in words is "one trillion, nine hundred twenty-eight billion, three hundred eleven million, three hundred seventy-three thousand, eight hundred sixty-three".