261430536060027 has 6 divisors (see below), whose sum is σ = 377621885420052. Its totient is φ = 174287024040012.

The previous prime is 261430536060011. The next prime is 261430536060049. The reversal of 261430536060027 is 720060635034162.

261430536060027 is a `hidden beast` number, since 2 + 6 + 1 + 4 + 3 + 0 + 5 + 36 + 0 + 600 + 2 + 7 = 666.

It is not a de Polignac number, because 261430536060027 - 2⁴ = 261430536060011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (261430536061027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14523918669993 + ... + 14523918670010.

It is an arithmetic number, because the mean of its divisors is an integer number (62936980903342).

Almost surely, 2^{261430536060027} is an apocalyptic number.

261430536060027 is a deficient number, since it is larger than the sum of its proper divisors (116191349360025).

261430536060027 is a wasteful number, since it uses less digits than its factorization.

261430536060027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29047837340009 (or 29047837340006 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 45.

The spelling of 261430536060027 in words is "two hundred sixty-one trillion, four hundred thirty billion, five hundred thirty-six million, sixty thousand, twenty-seven".