378755563 has 8 divisors (see below), whose sum is σ = 409568832. Its totient is φ = 348890496.

The previous prime is 378755537. The next prime is 378755579. The reversal of 378755563 is 365557873.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 378755563 - 2²¹ = 376658411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378750563) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 236220 + ... + 237817.

It is an arithmetic number, because the mean of its divisors is an integer number (51196104).

Almost surely, 2^378755563 is an apocalyptic number.

378755563 is a deficient number, since it is larger than the sum of its proper divisors (30813269).

378755563 is a wasteful number, since it uses less digits than its factorization.

378755563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474101.

The product of its digits is 2646000, while the sum is 49.

The square root of 378755563 is about 19461.6433787078. The cubic root of 378755563 is about 723.5241084476.

The spelling of 378755563 in words is "three hundred seventy-eight million, seven hundred fifty-five thousand, five hundred sixty-three".