261175576412 has 18 divisors (see below), whose sum is σ = 476938264824. Its totient is φ = 124907713920.

The previous prime is 261175576397. The next prime is 261175576421. The reversal of 261175576412 is 214675571162.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4875212 + ... + 4928492.

It is an arithmetic number, because the mean of its divisors is an integer number (26496570268).

Almost surely, 2^261175576412 is an apocalyptic number.

It is an amenable number.

261175576412 is a deficient number, since it is larger than the sum of its proper divisors (215762688412).

261175576412 is an frugal number, since it uses more digits than its factorization.

261175576412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106589 (or 53306 counting only the distinct ones).

The product of its digits is 705600, while the sum is 47.

The spelling of 261175576412 in words is "two hundred sixty-one billion, one hundred seventy-five million, five hundred seventy-six thousand, four hundred twelve".