260000263720 has 32 divisors (see below), whose sum is σ = 619412394600. Its totient is φ = 97882451968.

The previous prime is 260000263687. The next prime is 260000263751. The reversal of 260000263720 is 27362000062.

It can be written as a sum of positive squares in 4 ways, for example, as 241302983076 + 18697280644 = 491226^2 + 136738^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191175985 + ... + 191177344.

Almost surely, 2^260000263720 is an apocalyptic number.

260000263720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260000263720 is an abundant number, since it is smaller than the sum of its proper divisors (359412130880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

260000263720 is a wasteful number, since it uses less digits than its factorization.

260000263720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382353357 (or 382353353 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

Adding to 260000263720 its reverse (27362000062), we get a palindrome (287362263782).

The spelling of 260000263720 in words is "two hundred sixty billion, two hundred sixty-three thousand, seven hundred twenty".