261360630410 has 128 divisors (see below), whose sum is σ = 571730462208. Its totient is φ = 85558809600.

The previous prime is 261360630403. The next prime is 261360630467. The reversal of 261360630410 is 14036063162.

It is a super-3 number, since 3×261360630410³ (a number of 35 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5179100 + ... + 5229320.

It is an arithmetic number, because the mean of its divisors is an integer number (4466644236).

Almost surely, 2^261360630410 is an apocalyptic number.

261360630410 is an abundant number, since it is smaller than the sum of its proper divisors (310369831798).

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

261360630410 is a wasteful number, since it uses less digits than its factorization.

261360630410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50301 (or 50279 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

Adding to 261360630410 its reverse (14036063162), we get a palindrome (275396693572).

The spelling of 261360630410 in words is "two hundred sixty-one billion, three hundred sixty million, six hundred thirty thousand, four hundred ten".