2541865845973 has 2 divisors, whose sum is σ = 2541865845974. Its totient is φ = 2541865845972.

The previous prime is 2541865845851. The next prime is 2541865846063. The reversal of 2541865845973 is 3795485681452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2536065805009 + 5800040964 = 1592503^2 + 76158^2 .

It is a cyclic number.

It is not a de Polignac number, because 2541865845973 - 2¹⁷ = 2541865714901 is a prime.

It is a super-2 number, since 2×2541865845973² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2541865845899 and 2541865845908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2541865840973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270932922986 + 1270932922987.

It is an arithmetic number, because the mean of its divisors is an integer number (1270932922987).

Almost surely, 2^{2541865845973} is an apocalyptic number.

It is an amenable number.

2541865845973 is a deficient number, since it is larger than the sum of its proper divisors (1).

2541865845973 is an equidigital number, since it uses as much as digits as its factorization.

2541865845973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304000, while the sum is 67.

The spelling of 2541865845973 in words is "two trillion, five hundred forty-one billion, eight hundred sixty-five million, eight hundred forty-five thousand, nine hundred seventy-three".