261230852007 has 10 divisors (see below), whose sum is σ = 390233742008. Its totient is φ = 174153901284.

The previous prime is 261230851969. The next prime is 261230852017. The reversal of 261230852007 is 700258032162.

261230852007 is a `hidden beast` number, since 2 + 6 + 123 + 0 + 8 + 520 + 0 + 7 = 666.

It is not a de Polignac number, because 261230852007 - 2¹⁹ = 261230327719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261230852017) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1612536043 + ... + 1612536204.

Almost surely, 2^261230852007 is an apocalyptic number.

261230852007 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

261230852007 is a deficient number, since it is larger than the sum of its proper divisors (129002890001).

261230852007 is an equidigital number, since it uses as much as digits as its factorization.

261230852007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3225072259 (or 3225072250 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

Adding to 261230852007 its reverse (700258032162), we get a palindrome (961488884169).

The spelling of 261230852007 in words is "two hundred sixty-one billion, two hundred thirty million, eight hundred fifty-two thousand, seven".