2468539561 has 4 divisors (see below), whose sum is σ = 2575867392. Its totient is φ = 2361211732.

The previous prime is 2468539543. The next prime is 2468539613. The reversal of 2468539561 is 1659358642.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2468539561 - 2¹⁷ = 2468408489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2468539531) 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, 53663881 + ... + 53663926.

It is an arithmetic number, because the mean of its divisors is an integer number (643966848).

Almost surely, 2^2468539561 is an apocalyptic number.

It is an amenable number.

2468539561 is a deficient number, since it is larger than the sum of its proper divisors (107327831).

2468539561 is a wasteful number, since it uses less digits than its factorization.

2468539561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107327830.

The product of its digits is 1555200, while the sum is 49.

The square root of 2468539561 is about 49684.3995737093. The cubic root of 2468539561 is about 1351.4916408709.

It can be divided in two parts, 24685 and 39561, that added together give a palindrome (64246).

The spelling of 2468539561 in words is "two billion, four hundred sixty-eight million, five hundred thirty-nine thousand, five hundred sixty-one".