261250266023 has 2 divisors, whose sum is σ = 261250266024. Its totient is φ = 261250266022.

The previous prime is 261250265977. The next prime is 261250266089. The reversal of 261250266023 is 320662052162.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 261250266023 - 2¹² = 261250261927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (261250262023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130625133011 + 130625133012.

It is an arithmetic number, because the mean of its divisors is an integer number (130625133012).

Almost surely, 2^261250266023 is an apocalyptic number.

261250266023 is a deficient number, since it is larger than the sum of its proper divisors (1).

261250266023 is an equidigital number, since it uses as much as digits as its factorization.

261250266023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 261250266023 in words is "two hundred sixty-one billion, two hundred fifty million, two hundred sixty-six thousand, twenty-three".