378815270855 has 24 divisors (see below), whose sum is σ = 529999889760. Its totient is φ = 259167263040.

The previous prime is 378815270839. The next prime is 378815270881. The reversal of 378815270855 is 558072518873.

It is a happy number.

It is not a de Polignac number, because 378815270855 - 2⁴ = 378815270839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 378815270794 and 378815270803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1653476 + ... + 1868585.

It is an arithmetic number, because the mean of its divisors is an integer number (22083328740).

Almost surely, 2^378815270855 is an apocalyptic number.

378815270855 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

378815270855 is a deficient number, since it is larger than the sum of its proper divisors (151184618905).

378815270855 is a wasteful number, since it uses less digits than its factorization.

378815270855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3522519 (or 3522512 counting only the distinct ones).

The product of its (nonzero) digits is 18816000, while the sum is 59.

The spelling of 378815270855 in words is "three hundred seventy-eight billion, eight hundred fifteen million, two hundred seventy thousand, eight hundred fifty-five".