378880728055 has 8 divisors (see below), whose sum is σ = 454712592672. Its totient is φ = 303067436448.

The previous prime is 378880728053. The next prime is 378880728131. The reversal of 378880728055 is 550827088873.

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 378880728055 - 2¹ = 378880728053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 378880727984 and 378880728002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378880728053) 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, 4598332 + ... + 4680001.

It is an arithmetic number, because the mean of its divisors is an integer number (56839074084).

Almost surely, 2^378880728055 is an apocalyptic number.

378880728055 is a deficient number, since it is larger than the sum of its proper divisors (75831864617).

378880728055 is an equidigital number, since it uses as much as digits as its factorization.

378880728055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9286505.

The product of its (nonzero) digits is 30105600, while the sum is 61.

The spelling of 378880728055 in words is "three hundred seventy-eight billion, eight hundred eighty million, seven hundred twenty-eight thousand, fifty-five".