378709006369 has 4 divisors (see below), whose sum is σ = 379044445060. Its totient is φ = 378373567680.

The previous prime is 378709006321. The next prime is 378709006393. The reversal of 378709006369 is 963600907873.

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 221784483600 + 156924522769 = 470940^2 + 396137^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-378709006369 is a prime.

It is a super-2 number, since 2×378709006369² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378709006309) 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, 167717652 + ... + 167719909.

It is an arithmetic number, because the mean of its divisors is an integer number (94761111265).

Almost surely, 2^378709006369 is an apocalyptic number.

It is an amenable number.

378709006369 is a deficient number, since it is larger than the sum of its proper divisors (335438691).

378709006369 is a wasteful number, since it uses less digits than its factorization.

378709006369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335438690.

The product of its (nonzero) digits is 10287648, while the sum is 58.

The spelling of 378709006369 in words is "three hundred seventy-eight billion, seven hundred nine million, six thousand, three hundred sixty-nine".