27213812709 has 8 divisors (see below), whose sum is σ = 36298468992. Its totient is φ = 18135849120.

The previous prime is 27213812707. The next prime is 27213812711. The reversal of 27213812709 is 90721831272.

It is an interprime number because it is at equal distance from previous prime (27213812707) and next prime (27213812711).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27213812709 - 2¹ = 27213812707 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27213812707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1663677 + ... + 1679954.

It is an arithmetic number, because the mean of its divisors is an integer number (4537308624).

Almost surely, 2^27213812709 is an apocalyptic number.

It is an amenable number.

27213812709 is a deficient number, since it is larger than the sum of its proper divisors (9084656283).

27213812709 is a wasteful number, since it uses less digits than its factorization.

27213812709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3346347.

The product of its (nonzero) digits is 84672, while the sum is 42.

The spelling of 27213812709 in words is "twenty-seven billion, two hundred thirteen million, eight hundred twelve thousand, seven hundred nine".