261415106252 has 24 divisors (see below), whose sum is σ = 461215263600. Its totient is φ = 129643073216.

The previous prime is 261415106237. The next prime is 261415106287. The reversal of 261415106252 is 252601514162.

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, 190763 + ... + 747810.

It is an arithmetic number, because the mean of its divisors is an integer number (19217302650).

Almost surely, 2^261415106252 is an apocalyptic number.

It is an amenable number.

261415106252 is a deficient number, since it is larger than the sum of its proper divisors (199800157348).

261415106252 is a wasteful number, since it uses less digits than its factorization.

261415106252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939145 (or 939143 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 261415106252 in words is "two hundred sixty-one billion, four hundred fifteen million, one hundred six thousand, two hundred fifty-two".