378064066518 has 32 divisors (see below), whose sum is σ = 840205238400. Its totient is φ = 126011925288.

The previous prime is 378064066517. The next prime is 378064066559. The reversal of 378064066518 is 815660460873.

378064066518 is a `hidden beast` number, since 3 + 7 + 8 + 0 + 64 + 0 + 66 + 518 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378064066517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 485953 + ... + 996131.

It is an arithmetic number, because the mean of its divisors is an integer number (26256413700).

Almost surely, 2^378064066518 is an apocalyptic number.

378064066518 is an abundant number, since it is smaller than the sum of its proper divisors (462141171882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

378064066518 is a wasteful number, since it uses less digits than its factorization.

378064066518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523913 (or 523907 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 378064066518 in words is "three hundred seventy-eight billion, sixty-four million, sixty-six thousand, five hundred eighteen".