378788712205 has 4 divisors (see below), whose sum is σ = 454546454652. Its totient is φ = 303030969760.

The previous prime is 378788712191. The next prime is 378788712221. The reversal of 378788712205 is 502217887873.

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

It can be written as a sum of positive squares in 2 ways, for example, as 179285343241 + 199503368964 = 423421^2 + 446658^2 .

It is not a de Polignac number, because 378788712205 - 2⁷ = 378788712077 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 378788712205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37878871216 + ... + 37878871225.

It is an arithmetic number, because the mean of its divisors is an integer number (113636613663).

Almost surely, 2^378788712205 is an apocalyptic number.

It is an amenable number.

378788712205 is a deficient number, since it is larger than the sum of its proper divisors (75757742447).

378788712205 is an equidigital number, since it uses as much as digits as its factorization.

378788712205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75757742446.

The product of its (nonzero) digits is 10536960, while the sum is 58.

The spelling of 378788712205 in words is "three hundred seventy-eight billion, seven hundred eighty-eight million, seven hundred twelve thousand, two hundred five".