2538910270243 has 2 divisors, whose sum is σ = 2538910270244. Its totient is φ = 2538910270242.

The previous prime is 2538910270229. The next prime is 2538910270249. The reversal of 2538910270243 is 3420720198352.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2538910270243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2538910270193 and 2538910270202.

It is not a weakly prime, because it can be changed into another prime (2538910270249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1269455135121 + 1269455135122.

It is an arithmetic number, because the mean of its divisors is an integer number (1269455135122).

Almost surely, 2^{2538910270243} is an apocalyptic number.

2538910270243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2538910270243 is an equidigital number, since it uses as much as digits as its factorization.

2538910270243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 2538910270243 in words is "two trillion, five hundred thirty-eight billion, nine hundred ten million, two hundred seventy thousand, two hundred forty-three".