27347099608621 has 16 divisors (see below), whose sum is σ = 30276665566000. Its totient is φ = 24536877861888.

The previous prime is 27347099608603. The next prime is 27347099608651. The reversal of 27347099608621 is 12680699074372.

It can be written as a sum of positive squares in 8 ways, for example, as 1887708375721 + 25459391232900 = 1373939^2 + 5045730^2 .

It is a cyclic number.

It is not a de Polignac number, because 27347099608621 - 2¹⁵ = 27347099575853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27347099608651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27688446 + ... + 28659103.

It is an arithmetic number, because the mean of its divisors is an integer number (1892291597875).

Almost surely, 2^{27347099608621} is an apocalyptic number.

It is an amenable number.

27347099608621 is a deficient number, since it is larger than the sum of its proper divisors (2929565957379).

27347099608621 is a wasteful number, since it uses less digits than its factorization.

27347099608621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56348608.

The product of its (nonzero) digits is 54867456, while the sum is 64.

The spelling of 27347099608621 in words is "twenty-seven trillion, three hundred forty-seven billion, ninety-nine million, six hundred eight thousand, six hundred twenty-one".