378549282778 has 32 divisors (see below), whose sum is σ = 602553047040. Its totient is φ = 177860370240.

The previous prime is 378549282763. The next prime is 378549282803. The reversal of 378549282778 is 877282945873.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37353000 + ... + 37363132.

It is an arithmetic number, because the mean of its divisors is an integer number (18829782720).

Almost surely, 2^378549282778 is an apocalyptic number.

378549282778 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

378549282778 is a deficient number, since it is larger than the sum of its proper divisors (224003764262).

378549282778 is a wasteful number, since it uses less digits than its factorization.

378549282778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18022.

The product of its digits is 379330560, while the sum is 70.

The spelling of 378549282778 in words is "three hundred seventy-eight billion, five hundred forty-nine million, two hundred eighty-two thousand, seven hundred seventy-eight".