2581421186023 has 2 divisors, whose sum is σ = 2581421186024. Its totient is φ = 2581421186022.

The previous prime is 2581421185913. The next prime is 2581421186093. The reversal of 2581421186023 is 3206811241852.

2581421186023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2581421186023 - 2²⁹ = 2580884315111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2581421186093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1290710593011 + 1290710593012.

It is an arithmetic number, because the mean of its divisors is an integer number (1290710593012).

Almost surely, 2^{2581421186023} is an apocalyptic number.

2581421186023 is a deficient number, since it is larger than the sum of its proper divisors (1).

2581421186023 is an equidigital number, since it uses as much as digits as its factorization.

2581421186023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 184320, while the sum is 43.

The spelling of 2581421186023 in words is "two trillion, five hundred eighty-one billion, four hundred twenty-one million, one hundred eighty-six thousand, twenty-three".