378161707161873 has 4 divisors (see below), whose sum is σ = 504215609549168. Its totient is φ = 252107804774580.

The previous prime is 378161707161853. The next prime is 378161707161919.

378161707161873 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 378161707161873 - 2¹⁴ = 378161707145489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378161707161853) 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, 63026951193643 + ... + 63026951193648.

It is an arithmetic number, because the mean of its divisors is an integer number (126053902387292).

Almost surely, 2^{378161707161873} is an apocalyptic number.

It is an amenable number.

378161707161873 is a deficient number, since it is larger than the sum of its proper divisors (126053902387295).

378161707161873 is a wasteful number, since it uses less digits than its factorization.

378161707161873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126053902387294.

The product of its (nonzero) digits is 49787136, while the sum is 66.

The spelling of 378161707161873 in words is "three hundred seventy-eight trillion, one hundred sixty-one billion, seven hundred seven million, one hundred sixty-one thousand, eight hundred seventy-three".