378072777245 has 4 divisors (see below), whose sum is σ = 453687332700. Its totient is φ = 302458221792.

The previous prime is 378072777211. The next prime is 378072777263. The reversal of 378072777245 is 542777270873.

It is a happy number.

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 144878435641 + 233194341604 = 380629^2 + 482902^2 .

It is a cyclic number.

It is not a de Polignac number, because 378072777245 - 2¹² = 378072773149 is a prime.

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, 37807277720 + ... + 37807277729.

It is an arithmetic number, because the mean of its divisors is an integer number (113421833175).

Almost surely, 2^378072777245 is an apocalyptic number.

It is an amenable number.

378072777245 is a deficient number, since it is larger than the sum of its proper divisors (75614555455).

378072777245 is an equidigital number, since it uses as much as digits as its factorization.

378072777245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75614555454.

The product of its (nonzero) digits is 32269440, while the sum is 59.

The spelling of 378072777245 in words is "three hundred seventy-eight billion, seventy-two million, seven hundred seventy-seven thousand, two hundred forty-five".