82578302780254 has 4 divisors (see below), whose sum is σ = 123867454170384. Its totient is φ = 41289151390126.

The previous prime is 82578302780251. The next prime is 82578302780263. The reversal of 82578302780254 is 45208720387528.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 82578302780192 and 82578302780201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82578302780251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20644575695062 + ... + 20644575695065.

It is an arithmetic number, because the mean of its divisors is an integer number (30966863542596).

Almost surely, 2^{82578302780254} is an apocalyptic number.

82578302780254 is a deficient number, since it is larger than the sum of its proper divisors (41289151390130).

82578302780254 is a wasteful number, since it uses less digits than its factorization.

82578302780254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41289151390129.

The product of its (nonzero) digits is 60211200, while the sum is 61.

The spelling of 82578302780254 in words is "eighty-two trillion, five hundred seventy-eight billion, three hundred two million, seven hundred eighty thousand, two hundred fifty-four".