378856327655 has 8 divisors (see below), whose sum is σ = 489598946592. Its totient is φ = 279770826528.

The previous prime is 378856327631. The next prime is 378856327657. The reversal of 378856327655 is 556723658873.

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 378856327655 - 2¹⁶ = 378856262119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (65), and also a Moran number because the ratio is a prime number: 5828558887 = 378856327655 / (3 + 7 + 8 + 8 + 5 + 6 + 3 + 2 + 7 + 6 + 5 + 5).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 378856327591 and 378856327600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378856327657) 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, 2914279379 + ... + 2914279508.

It is an arithmetic number, because the mean of its divisors is an integer number (61199868324).

Almost surely, 2^378856327655 is an apocalyptic number.

378856327655 is a deficient number, since it is larger than the sum of its proper divisors (110742618937).

378856327655 is a wasteful number, since it uses less digits than its factorization.

378856327655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5828558905.

The product of its digits is 254016000, while the sum is 65.

The spelling of 378856327655 in words is "three hundred seventy-eight billion, eight hundred fifty-six million, three hundred twenty-seven thousand, six hundred fifty-five".