378242340413 has 6 divisors (see below), whose sum is σ = 439996191966. Its totient is φ = 324207720312.

The previous prime is 378242340407. The next prime is 378242340503. The reversal of 378242340413 is 314043242873.

It can be written as a sum of positive squares in only one way, i.e., 378240990169 + 1350244 = 615013^2 + 1162^2 .

It is not a de Polignac number, because 378242340413 - 2⁶ = 378242340349 is a prime.

It is a super-2 number, since 2×378242340413² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378242340313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3859615670 + ... + 3859615767.

It is an arithmetic number, because the mean of its divisors is an integer number (73332698661).

Almost surely, 2^378242340413 is an apocalyptic number.

It is an amenable number.

378242340413 is a deficient number, since it is larger than the sum of its proper divisors (61753851553).

378242340413 is an equidigital number, since it uses as much as digits as its factorization.

378242340413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7719231451 (or 7719231444 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 41.

The spelling of 378242340413 in words is "three hundred seventy-eight billion, two hundred forty-two million, three hundred forty thousand, four hundred thirteen".