378403912966 has 32 divisors (see below), whose sum is σ = 593973777600. Its totient is φ = 180460008960.

The previous prime is 378403912949. The next prime is 378403912979. The reversal of 378403912966 is 669219304873.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 378403912966.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62142450 + ... + 62148538.

It is an arithmetic number, because the mean of its divisors is an integer number (18561680550).

Almost surely, 2^378403912966 is an apocalyptic number.

378403912966 is a deficient number, since it is larger than the sum of its proper divisors (215569864634).

378403912966 is a wasteful number, since it uses less digits than its factorization.

378403912966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9744.

The product of its (nonzero) digits is 11757312, while the sum is 58.

The spelling of 378403912966 in words is "three hundred seventy-eight billion, four hundred three million, nine hundred twelve thousand, nine hundred sixty-six".