25444214014146 has 16 divisors (see below), whose sum is σ = 50938269791808. Its totient is φ = 8473097710800.

The previous prime is 25444214014139. The next prime is 25444214014171. The reversal of 25444214014146 is 64141041244452.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25444214014098 and 25444214014107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2076733510 + ... + 2076745761.

It is an arithmetic number, because the mean of its divisors is an integer number (3183641861988).

Almost surely, 2^{25444214014146} is an apocalyptic number.

25444214014146 is an abundant number, since it is smaller than the sum of its proper divisors (25494055777662).

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

25444214014146 is a wasteful number, since it uses less digits than its factorization.

25444214014146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4153480297.

The product of its (nonzero) digits is 491520, while the sum is 42.

Adding to 25444214014146 its reverse (64141041244452), we get a palindrome (89585255258598).

The spelling of 25444214014146 in words is "twenty-five trillion, four hundred forty-four billion, two hundred fourteen million, fourteen thousand, one hundred forty-six".