378435197169 has 12 divisors (see below), whose sum is σ = 550801357392. Its totient is φ = 250364251800.

The previous prime is 378435197123. The next prime is 378435197191. The reversal of 378435197169 is 961791534873.

378435197169 is a `hidden beast` number, since 3 + 7 + 8 + 43 + 519 + 71 + 6 + 9 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-378435197169 is a prime.

It is a super-2 number, since 2×378435197169² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (378435196169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 160488727 + ... + 160491084.

It is an arithmetic number, because the mean of its divisors is an integer number (45900113116).

Almost surely, 2^378435197169 is an apocalyptic number.

It is an amenable number.

378435197169 is a deficient number, since it is larger than the sum of its proper divisors (172366160223).

378435197169 is a wasteful number, since it uses less digits than its factorization.

378435197169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320979948 (or 320979945 counting only the distinct ones).

The product of its digits is 34292160, while the sum is 63.

The spelling of 378435197169 in words is "three hundred seventy-eight billion, four hundred thirty-five million, one hundred ninety-seven thousand, one hundred sixty-nine".