261427537304 has 16 divisors (see below), whose sum is σ = 491113880520. Its totient is φ = 130463835840.

The previous prime is 261427537229. The next prime is 261427537369. The reversal of 261427537304 is 403735724162.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31237157 + ... + 31245524.

Almost surely, 2^261427537304 is an apocalyptic number.

It is an amenable number.

261427537304 is a deficient number, since it is larger than the sum of its proper divisors (229686343216).

261427537304 is a wasteful number, since it uses less digits than its factorization.

261427537304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62483210 (or 62483206 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 44.

The spelling of 261427537304 in words is "two hundred sixty-one billion, four hundred twenty-seven million, five hundred thirty-seven thousand, three hundred four".