261303451463 has 2 divisors, whose sum is σ = 261303451464. Its totient is φ = 261303451462.

The previous prime is 261303451397. The next prime is 261303451469. The reversal of 261303451463 is 364154303162.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 261303451463 - 2⁸ = 261303451207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (261303451469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130651725731 + 130651725732.

It is an arithmetic number, because the mean of its divisors is an integer number (130651725732).

Almost surely, 2^261303451463 is an apocalyptic number.

261303451463 is a deficient number, since it is larger than the sum of its proper divisors (1).

261303451463 is an equidigital number, since it uses as much as digits as its factorization.

261303451463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 261303451463 in words is "two hundred sixty-one billion, three hundred three million, four hundred fifty-one thousand, four hundred sixty-three".