2380978811905 has 4 divisors (see below), whose sum is σ = 2857174574292. Its totient is φ = 1904783049520.

The previous prime is 2380978811837. The next prime is 2380978811971. The reversal of 2380978811905 is 5091188790832.

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

It can be written as a sum of positive squares in 2 ways, for example, as 963650465649 + 1417328346256 = 981657^2 + 1190516^2 .

It is not a de Polignac number, because 2380978811905 - 2¹⁷ = 2380978680833 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238097881186 + ... + 238097881195.

It is an arithmetic number, because the mean of its divisors is an integer number (714293643573).

Almost surely, 2^{2380978811905} is an apocalyptic number.

It is an amenable number.

2380978811905 is a deficient number, since it is larger than the sum of its proper divisors (476195762387).

2380978811905 is an equidigital number, since it uses as much as digits as its factorization.

2380978811905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476195762386.

The product of its (nonzero) digits is 8709120, while the sum is 61.

The spelling of 2380978811905 in words is "two trillion, three hundred eighty billion, nine hundred seventy-eight million, eight hundred eleven thousand, nine hundred five".