2615845541 has 2 divisors, whose sum is σ = 2615845542. Its totient is φ = 2615845540.

The previous prime is 2615845523. The next prime is 2615845549. The reversal of 2615845541 is 1455485162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2014124641 + 601720900 = 44879^2 + 24530^2 .

It is a cyclic number.

It is not a de Polignac number, because 2615845541 - 2²⁶ = 2548736677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2615845549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1307922770 + 1307922771.

It is an arithmetic number, because the mean of its divisors is an integer number (1307922771).

Almost surely, 2^2615845541 is an apocalyptic number.

It is an amenable number.

2615845541 is a deficient number, since it is larger than the sum of its proper divisors (1).

2615845541 is an equidigital number, since it uses as much as digits as its factorization.

2615845541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192000, while the sum is 41.

The square root of 2615845541 is about 51145.3374316760. The cubic root of 2615845541 is about 1377.8566357986.

The spelling of 2615845541 in words is "two billion, six hundred fifteen million, eight hundred forty-five thousand, five hundred forty-one".