2573959256466 has 128 divisors (see below), whose sum is σ = 5919206388480. Its totient is φ = 739579465728.

The previous prime is 2573959256339. The next prime is 2573959256471. The reversal of 2573959256466 is 6646529593752.

It is a self number, because there is not a number n which added to its sum of digits gives 2573959256466.

It is an unprimeable number.

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 in 63 ways as a sum of consecutive naturals, for example, 206953600 + ... + 206966036.

It is an arithmetic number, because the mean of its divisors is an integer number (46243799910).

Almost surely, 2^{2573959256466} is an apocalyptic number.

2573959256466 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2573959256466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2959603194240).

2573959256466 is an abundant number, since it is smaller than the sum of its proper divisors (3345247132014).

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

2573959256466 is a wasteful number, since it uses less digits than its factorization.

2573959256466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14460.

The product of its digits is 734832000, while the sum is 69.

The spelling of 2573959256466 in words is "two trillion, five hundred seventy-three billion, nine hundred fifty-nine million, two hundred fifty-six thousand, four hundred sixty-six".