2581815022145 has 8 divisors (see below), whose sum is σ = 3098378739456. Its totient is φ = 2065318209136.

The previous prime is 2581815022139. The next prime is 2581815022153. The reversal of 2581815022145 is 5412205181852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2581815022145 - 2¹² = 2581815018049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2581815022096 and 2581815022105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16641137 + ... + 16795566.

It is an arithmetic number, because the mean of its divisors is an integer number (387297342432).

Almost surely, 2^{2581815022145} is an apocalyptic number.

It is an amenable number.

2581815022145 is a deficient number, since it is larger than the sum of its proper divisors (516563717311).

2581815022145 is a wasteful number, since it uses less digits than its factorization.

2581815022145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33452151.

The product of its (nonzero) digits is 256000, while the sum is 44.

The spelling of 2581815022145 in words is "two trillion, five hundred eighty-one billion, eight hundred fifteen million, twenty-two thousand, one hundred forty-five".