27207804461 has 2 divisors, whose sum is σ = 27207804462. Its totient is φ = 27207804460.

The previous prime is 27207804431. The next prime is 27207804527. The reversal of 27207804461 is 16440870272.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18825486436 + 8382318025 = 137206^2 + 91555^2 .

It is a cyclic number.

It is not a de Polignac number, because 27207804461 - 2¹⁰ = 27207803437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27207804431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13603902230 + 13603902231.

It is an arithmetic number, because the mean of its divisors is an integer number (13603902231).

Almost surely, 2^27207804461 is an apocalyptic number.

It is an amenable number.

27207804461 is a deficient number, since it is larger than the sum of its proper divisors (1).

27207804461 is an equidigital number, since it uses as much as digits as its factorization.

27207804461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 150528, while the sum is 41.

The spelling of 27207804461 in words is "twenty-seven billion, two hundred seven million, eight hundred four thousand, four hundred sixty-one".