27670260700405 has 4 divisors (see below), whose sum is σ = 33204312840492. Its totient is φ = 22136208560320.

The previous prime is 27670260700391. The next prime is 27670260700429. The reversal of 27670260700405 is 50400706207672.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4375756932561 + 23294503767844 = 2091831^2 + 4826438^2 .

It is not a de Polignac number, because 27670260700405 - 2¹³ = 27670260692213 is a prime.

It is a Duffinian number.

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, 2767026070036 + ... + 2767026070045.

It is an arithmetic number, because the mean of its divisors is an integer number (8301078210123).

Almost surely, 2^{27670260700405} is an apocalyptic number.

It is an amenable number.

27670260700405 is a deficient number, since it is larger than the sum of its proper divisors (5534052140087).

27670260700405 is an equidigital number, since it uses as much as digits as its factorization.

27670260700405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5534052140086.

The product of its (nonzero) digits is 987840, while the sum is 46.

The spelling of 27670260700405 in words is "twenty-seven trillion, six hundred seventy billion, two hundred sixty million, seven hundred thousand, four hundred five".