261360846544312 has 128 divisors (see below), whose sum is σ = 539897791910400. Its totient is φ = 118062501004800.

The previous prime is 261360846544279. The next prime is 261360846544319. The reversal of 261360846544312 is 213445648063162.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261360846544319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1912967362 + ... + 1913103982.

It is an arithmetic number, because the mean of its divisors is an integer number (4217951499300).

Almost surely, 2^{261360846544312} is an apocalyptic number.

It is an amenable number.

261360846544312 is an abundant number, since it is smaller than the sum of its proper divisors (278536945366088).

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

261360846544312 is a wasteful number, since it uses less digits than its factorization.

261360846544312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138317 (or 138313 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 55.

The spelling of 261360846544312 in words is "two hundred sixty-one trillion, three hundred sixty billion, eight hundred forty-six million, five hundred forty-four thousand, three hundred twelve".