3778563374489 has 4 divisors (see below), whose sum is σ = 3779214071424. Its totient is φ = 3777912677556.

The previous prime is 3778563374477. The next prime is 3778563374527. The reversal of 3778563374489 is 9844733658773.

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 3778563374489 - 2³² = 3774268407193 is a prime.

It is a super-2 number, since 2×3778563374489² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3778563304489) 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, 325339757 + ... + 325351370.

It is an arithmetic number, because the mean of its divisors is an integer number (944803517856).

Almost surely, 2^{3778563374489} is an apocalyptic number.

It is an amenable number.

3778563374489 is a deficient number, since it is larger than the sum of its proper divisors (650696935).

3778563374489 is an equidigital number, since it uses as much as digits as its factorization.

3778563374489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650696934.

The product of its digits is 2560481280, while the sum is 74.

The spelling of 3778563374489 in words is "three trillion, seven hundred seventy-eight billion, five hundred sixty-three million, three hundred seventy-four thousand, four hundred eighty-nine".