2541078643 has 2 divisors, whose sum is σ = 2541078644. Its totient is φ = 2541078642.

The previous prime is 2541078581. The next prime is 2541078653. The reversal of 2541078643 is 3468701452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2541078643 - 2⁹ = 2541078131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2541078596 and 2541078605.

It is not a weakly prime, because it can be changed into another prime (2541078653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270539321 + 1270539322.

It is an arithmetic number, because the mean of its divisors is an integer number (1270539322).

Almost surely, 2^2541078643 is an apocalyptic number.

2541078643 is a deficient number, since it is larger than the sum of its proper divisors (1).

2541078643 is an equidigital number, since it uses as much as digits as its factorization.

2541078643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 2541078643 is about 50409.1126980033. The cubic root of 2541078643 is about 1364.6021002519.

The spelling of 2541078643 in words is "two billion, five hundred forty-one million, seventy-eight thousand, six hundred forty-three".