2387408255867 has 4 divisors (see below), whose sum is σ = 2390692174416. Its totient is φ = 2384124337320.

The previous prime is 2387408255849. The next prime is 2387408255887. The reversal of 2387408255867 is 7685528047832.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2387408255867 - 2¹⁰ = 2387408254843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2387408255887) 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, 1641958184 + ... + 1641959637.

It is an arithmetic number, because the mean of its divisors is an integer number (597673043604).

Almost surely, 2^{2387408255867} is an apocalyptic number.

2387408255867 is a deficient number, since it is larger than the sum of its proper divisors (3283918549).

2387408255867 is an equidigital number, since it uses as much as digits as its factorization.

2387408255867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3283918548.

The product of its (nonzero) digits is 180633600, while the sum is 65.

The spelling of 2387408255867 in words is "two trillion, three hundred eighty-seven billion, four hundred eight million, two hundred fifty-five thousand, eight hundred sixty-seven".