261432140452363 has 2 divisors, whose sum is σ = 261432140452364. Its totient is φ = 261432140452362.

The previous prime is 261432140452289. The next prime is 261432140452369. The reversal of 261432140452363 is 363254041234162.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 261432140452363 - 2³⁷ = 261294701498891 is a prime.

It is not a weakly prime, because it can be changed into another prime (261432140452369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130716070226181 + 130716070226182.

It is an arithmetic number, because the mean of its divisors is an integer number (130716070226182).

Almost surely, 2^{261432140452363} is an apocalyptic number.

261432140452363 is a deficient number, since it is larger than the sum of its proper divisors (1).

261432140452363 is an equidigital number, since it uses as much as digits as its factorization.

261432140452363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2488320, while the sum is 46.

The spelling of 261432140452363 in words is "two hundred sixty-one trillion, four hundred thirty-two billion, one hundred forty million, four hundred fifty-two thousand, three hundred sixty-three".