378819440613 has 12 divisors (see below), whose sum is σ = 547335131980. Its totient is φ = 252476372736.

The previous prime is 378819440581. The next prime is 378819440617. The reversal of 378819440613 is 316044918873.

378819440613 is a `hidden beast` number, since 3 + 7 + 8 + 8 + 19 + 4 + 4 + 0 + 613 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21213048609 + 357606392004 = 145647^2 + 598002^2 .

It is not a de Polignac number, because 378819440613 - 2⁵ = 378819440581 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 378819440613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378819440617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5792428 + ... + 5857461.

Almost surely, 2^378819440613 is an apocalyptic number.

It is an amenable number.

378819440613 is a deficient number, since it is larger than the sum of its proper divisors (168515691367).

378819440613 is a wasteful number, since it uses less digits than its factorization.

378819440613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11653508 (or 11653505 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 378819440613 in words is "three hundred seventy-eight billion, eight hundred nineteen million, four hundred forty thousand, six hundred thirteen".