2658555265049 has 4 divisors (see below), whose sum is σ = 2668152937764. Its totient is φ = 2648957592336.

The previous prime is 2658555264997. The next prime is 2658555265159. The reversal of 2658555265049 is 9405625558562.

2658555265049 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 1840377126025 + 818178139024 = 1356605^2 + 904532^2 .

It is a cyclic number.

It is not a de Polignac number, because 2658555265049 - 2¹⁶ = 2658555199513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2658555264982 and 2658555265000.

It is not an unprimeable number, because it can be changed into a prime (2658555261049) 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, 4798835942 + ... + 4798836495.

It is an arithmetic number, because the mean of its divisors is an integer number (667038234441).

Almost surely, 2^{2658555265049} is an apocalyptic number.

It is an amenable number.

2658555265049 is a deficient number, since it is larger than the sum of its proper divisors (9597672715).

2658555265049 is an equidigital number, since it uses as much as digits as its factorization.

2658555265049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9597672714.

The product of its (nonzero) digits is 129600000, while the sum is 62.

The spelling of 2658555265049 in words is "two trillion, six hundred fifty-eight billion, five hundred fifty-five million, two hundred sixty-five thousand, forty-nine".