2541621520363 has 2 divisors, whose sum is σ = 2541621520364. Its totient is φ = 2541621520362.

The previous prime is 2541621520289. The next prime is 2541621520381. The reversal of 2541621520363 is 3630251261452.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2541621520363 is a prime.

It is not a weakly prime, because it can be changed into another prime (2541621580363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270810760181 + 1270810760182.

It is an arithmetic number, because the mean of its divisors is an integer number (1270810760182).

Almost surely, 2^{2541621520363} is an apocalyptic number.

2541621520363 is a deficient number, since it is larger than the sum of its proper divisors (1).

2541621520363 is an equidigital number, since it uses as much as digits as its factorization.

2541621520363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 2541621520363 in words is "two trillion, five hundred forty-one billion, six hundred twenty-one million, five hundred twenty thousand, three hundred sixty-three".