261515264127352 has 32 divisors (see below), whose sum is σ = 492246722073600. Its totient is φ = 130250271205600.

The previous prime is 261515264127343. The next prime is 261515264127367. The reversal of 261515264127352 is 253721462515162.

It is a self number, because there is not a number n which added to its sum of digits gives 261515264127352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47359924 + ... + 52592707.

It is an arithmetic number, because the mean of its divisors is an integer number (15382710064800).

Almost surely, 2^{261515264127352} is an apocalyptic number.

It is an amenable number.

261515264127352 is a deficient number, since it is larger than the sum of its proper divisors (230731457946248).

261515264127352 is a wasteful number, since it uses less digits than its factorization.

261515264127352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99953907 (or 99953903 counting only the distinct ones).

The product of its digits is 6048000, while the sum is 52.

The spelling of 261515264127352 in words is "two hundred sixty-one trillion, five hundred fifteen billion, two hundred sixty-four million, one hundred twenty-seven thousand, three hundred fifty-two".