2581815022143 has 16 divisors (see below), whose sum is σ = 4061103814656. Its totient is φ = 1427731809120.

The previous prime is 2581815022139. The next prime is 2581815022153. The reversal of 2581815022143 is 3412205181852.

It is not a de Polignac number, because 2581815022143 - 2² = 2581815022139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2581815022095 and 2581815022104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2581815022153) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1982960196 + ... + 1982961497.

It is an arithmetic number, because the mean of its divisors is an integer number (253818988416).

Almost surely, 2^{2581815022143} is an apocalyptic number.

2581815022143 is a deficient number, since it is larger than the sum of its proper divisors (1479288792513).

2581815022143 is a wasteful number, since it uses less digits than its factorization.

2581815022143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3965921734.

The product of its (nonzero) digits is 153600, while the sum is 42.

The spelling of 2581815022143 in words is "two trillion, five hundred eighty-one billion, eight hundred fifteen million, twenty-two thousand, one hundred forty-three".