8255263380978 has 8 divisors (see below), whose sum is σ = 16510526761968. Its totient is φ = 2751754460324.

The previous prime is 8255263380911. The next prime is 8255263380979. The reversal of 8255263380978 is 8790833625528.

It is a sphenic number, since it is the product of 3 distinct primes.

8255263380978 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (8255263380979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 687938615076 + ... + 687938615087.

It is an arithmetic number, because the mean of its divisors is an integer number (2063815845246).

Almost surely, 2^{8255263380978} is an apocalyptic number.

8255263380978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8255263380978 is a wasteful number, since it uses less digits than its factorization.

8255263380978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375877230168.

The product of its (nonzero) digits is 174182400, while the sum is 66.

The spelling of 8255263380978 in words is "eight trillion, two hundred fifty-five billion, two hundred sixty-three million, three hundred eighty thousand, nine hundred seventy-eight".