380844120845 has 6 divisors (see below), whose sum is σ = 457014600942. Its totient is φ = 304674192728.

The previous prime is 380844120827. The next prime is 380844120859. The reversal of 380844120845 is 548021448083.

It can be written as a sum of positive squares in only one way, i.e., 304675296676 + 76168824169 = 551974^2 + 275987^2 .

It is not a de Polignac number, because 380844120845 - 2⁸ = 380844120589 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 380844120845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1241942 + ... + 1517928.

It is an arithmetic number, because the mean of its divisors is an integer number (76169100157).

Almost surely, 2^380844120845 is an apocalyptic number.

It is an amenable number.

380844120845 is a deficient number, since it is larger than the sum of its proper divisors (76170480097).

380844120845 is an frugal number, since it uses more digits than its factorization.

380844120845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551979 (or 275992 counting only the distinct ones).

The product of its (nonzero) digits is 983040, while the sum is 47.

The spelling of 380844120845 in words is "three hundred eighty billion, eight hundred forty-four million, one hundred twenty thousand, eight hundred forty-five".