378004816255 has 32 divisors (see below), whose sum is σ = 505950520320. Its totient is φ = 268754977920.

The previous prime is 378004816249. The next prime is 378004816261. The reversal of 378004816255 is 552618400873.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (378004816249) and next prime (378004816261).

It is not a de Polignac number, because 378004816255 - 2⁷ = 378004816127 is a prime.

It is a super-2 number, since 2×378004816255² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 378004816199 and 378004816208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2183676 + ... + 2350414.

It is an arithmetic number, because the mean of its divisors is an integer number (15810953760).

Almost surely, 2^378004816255 is an apocalyptic number.

378004816255 is a deficient number, since it is larger than the sum of its proper divisors (127945704065).

378004816255 is a wasteful number, since it uses less digits than its factorization.

378004816255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167679.

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 378004816255 in words is "three hundred seventy-eight billion, four million, eight hundred sixteen thousand, two hundred fifty-five".