378373373873 has 4 divisors (see below), whose sum is σ = 412770953328. Its totient is φ = 343975794420.

The previous prime is 378373373867. The next prime is 378373373887.

378373373873 is nontrivially palindromic in base 10.

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 378373373873 - 2¹⁰ = 378373372849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378373313873) 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, 17198789711 + ... + 17198789732.

It is an arithmetic number, because the mean of its divisors is an integer number (103192738332).

Almost surely, 2^378373373873 is an apocalyptic number.

It is an amenable number.

378373373873 is a deficient number, since it is larger than the sum of its proper divisors (34397579455).

378373373873 is a wasteful number, since it uses less digits than its factorization.

378373373873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34397579454.

The product of its digits is 112021056, while the sum is 62.

The spelling of 378373373873 in words is "three hundred seventy-eight billion, three hundred seventy-three million, three hundred seventy-three thousand, eight hundred seventy-three".