378634481563 has 8 divisors (see below), whose sum is σ = 409809260000. Its totient is φ = 347752424448.

The previous prime is 378634481543. The next prime is 378634481593. The reversal of 378634481563 is 365184436873.

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

It is not a de Polignac number, because 378634481563 - 2⁵ = 378634481531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 378634481498 and 378634481507.

It is not an unprimeable number, because it can be changed into a prime (378634481543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73177638 + ... + 73182811.

It is an arithmetic number, because the mean of its divisors is an integer number (51226157500).

Almost surely, 2^378634481563 is an apocalyptic number.

378634481563 is a deficient number, since it is larger than the sum of its proper divisors (31174778437).

378634481563 is a wasteful number, since it uses less digits than its factorization.

378634481563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146360661.

The product of its digits is 34836480, while the sum is 58.

The spelling of 378634481563 in words is "three hundred seventy-eight billion, six hundred thirty-four million, four hundred eighty-one thousand, five hundred sixty-three".