261204027796 has 12 divisors (see below), whose sum is σ = 457885770048. Its totient is φ = 130379522072.

The previous prime is 261204027767. The next prime is 261204027839. The reversal of 261204027796 is 697720402162.

It is a happy number.

261204027796 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55620316 + ... + 55625011.

It is an arithmetic number, because the mean of its divisors is an integer number (38157147504).

Almost surely, 2^261204027796 is an apocalyptic number.

It is an amenable number.

261204027796 is a deficient number, since it is larger than the sum of its proper divisors (196681742252).

261204027796 is a wasteful number, since it uses less digits than its factorization.

261204027796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111245918 (or 111245916 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 261204027796 in words is "two hundred sixty-one billion, two hundred four million, twenty-seven thousand, seven hundred ninety-six".