4378123243057 has 4 divisors (see below), whose sum is σ = 4378132495360. Its totient is φ = 4378113990756.

The previous prime is 4378123243049. The next prime is 4378123243099. The reversal of 4378123243057 is 7503423218734.

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 4378123243057 - 2³ = 4378123243049 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 4378123243057.

It is not an unprimeable number, because it can be changed into a prime (4378123243157) 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, 3875793 + ... + 4876270.

It is an arithmetic number, because the mean of its divisors is an integer number (1094533123840).

Almost surely, 2^{4378123243057} is an apocalyptic number.

It is an amenable number.

4378123243057 is a deficient number, since it is larger than the sum of its proper divisors (9252303).

4378123243057 is an equidigital number, since it uses as much as digits as its factorization.

4378123243057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9252302.

The product of its (nonzero) digits is 3386880, while the sum is 49.

The spelling of 4378123243057 in words is "four trillion, three hundred seventy-eight billion, one hundred twenty-three million, two hundred forty-three thousand, fifty-seven".