261421716227246 has 16 divisors (see below), whose sum is σ = 393915999464064. Its totient is φ = 130116457427424.

The previous prime is 261421716227237. The next prime is 261421716227297. The reversal of 261421716227246 is 642722617124162.

261421716227246 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

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, 11545961 + ... + 25615476.

It is an arithmetic number, because the mean of its divisors is an integer number (24619749966504).

Almost surely, 2^{261421716227246} is an apocalyptic number.

261421716227246 is a deficient number, since it is larger than the sum of its proper divisors (132494283236818).

261421716227246 is a wasteful number, since it uses less digits than its factorization.

261421716227246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37177435.

The product of its digits is 5419008, while the sum is 53.

The spelling of 261421716227246 in words is "two hundred sixty-one trillion, four hundred twenty-one billion, seven hundred sixteen million, two hundred twenty-seven thousand, two hundred forty-six".