261446749583 has 2 divisors, whose sum is σ = 261446749584. Its totient is φ = 261446749582.

The previous prime is 261446749573. The next prime is 261446749621. The reversal of 261446749583 is 385947644162.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 261446749583 - 2¹⁴ = 261446733199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (261446749573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130723374791 + 130723374792.

It is an arithmetic number, because the mean of its divisors is an integer number (130723374792).

Almost surely, 2^261446749583 is an apocalyptic number.

261446749583 is a deficient number, since it is larger than the sum of its proper divisors (1).

261446749583 is an equidigital number, since it uses as much as digits as its factorization.

261446749583 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34836480, while the sum is 59.

The spelling of 261446749583 in words is "two hundred sixty-one billion, four hundred forty-six million, seven hundred forty-nine thousand, five hundred eighty-three".