2378973881 has 4 divisors (see below), whose sum is σ = 2482407552. Its totient is φ = 2275540212.

The previous prime is 2378973853. The next prime is 2378973887. The reversal of 2378973881 is 1883798732.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2378973881 - 2¹⁰ = 2378972857 is a prime.

It is a super-2 number, since 2×2378973881² = 11319033452960404322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2378973887) 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, 51716801 + ... + 51716846.

It is an arithmetic number, because the mean of its divisors is an integer number (620601888).

Almost surely, 2^2378973881 is an apocalyptic number.

It is an amenable number.

2378973881 is a deficient number, since it is larger than the sum of its proper divisors (103433671).

2378973881 is a wasteful number, since it uses less digits than its factorization.

2378973881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103433670.

The product of its digits is 4064256, while the sum is 56.

The square root of 2378973881 is about 48774.7258423869. The cubic root of 2378973881 is about 1334.9445437928.

The spelling of 2378973881 in words is "two billion, three hundred seventy-eight million, nine hundred seventy-three thousand, eight hundred eighty-one".