2820402486425 has 6 divisors (see below), whose sum is σ = 3497299083198. Its totient is φ = 2256321989120.

The previous prime is 2820402486397. The next prime is 2820402486491. The reversal of 2820402486425 is 5246842040282.

It can be written as a sum of positive squares in 3 ways, for example, as 821495700496 + 1998906785929 = 906364^2 + 1413827^2 .

It is not a de Polignac number, because 2820402486425 - 2⁶ = 2820402486361 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2820402486425.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56408049704 + ... + 56408049753.

It is an arithmetic number, because the mean of its divisors is an integer number (582883180533).

Almost surely, 2^{2820402486425} is an apocalyptic number.

2820402486425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2820402486425 is a deficient number, since it is larger than the sum of its proper divisors (676896596773).

2820402486425 is a wasteful number, since it uses less digits than its factorization.

2820402486425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112816099467 (or 112816099462 counting only the distinct ones).

The product of its (nonzero) digits is 1966080, while the sum is 47.

The spelling of 2820402486425 in words is "two trillion, eight hundred twenty billion, four hundred two million, four hundred eighty-six thousand, four hundred twenty-five".