2573820026881 has 4 divisors (see below), whose sum is σ = 2590213785172. Its totient is φ = 2557426268592.

The previous prime is 2573820026831. The next prime is 2573820026923. The reversal of 2573820026881 is 1886200283752.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1088933990400 + 1484886036481 = 1043520^2 + 1218559^2 .

It is a cyclic number.

It is not a de Polignac number, because 2573820026881 - 2⁷ = 2573820026753 is a prime.

It is a super-2 number, since 2×2573820026881² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2573820026801) 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, 8196878910 + ... + 8196879223.

It is an arithmetic number, because the mean of its divisors is an integer number (647553446293).

Almost surely, 2^{2573820026881} is an apocalyptic number.

It is an amenable number.

2573820026881 is a deficient number, since it is larger than the sum of its proper divisors (16393758291).

2573820026881 is a wasteful number, since it uses less digits than its factorization.

2573820026881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16393758290.

The product of its (nonzero) digits is 2580480, while the sum is 52.

The spelling of 2573820026881 in words is "two trillion, five hundred seventy-three billion, eight hundred twenty million, twenty-six thousand, eight hundred eighty-one".