27797200013 has 16 divisors (see below), whose sum is σ = 31928040000. Its totient is φ = 23934314880.

The previous prime is 27797200009. The next prime is 27797200117. The reversal of 27797200013 is 31000279772.

It is a cyclic number.

It is not a de Polignac number, because 27797200013 - 2² = 27797200009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27797200013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27797200813) 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, 987863 + ... + 1015611.

It is an arithmetic number, because the mean of its divisors is an integer number (1995502500).

Almost surely, 2^27797200013 is an apocalyptic number.

It is an amenable number.

27797200013 is a deficient number, since it is larger than the sum of its proper divisors (4130839987).

27797200013 is a wasteful number, since it uses less digits than its factorization.

27797200013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32572.

The product of its (nonzero) digits is 37044, while the sum is 38.

Adding to 27797200013 its reverse (31000279772), we get a palindrome (58797479785).

The spelling of 27797200013 in words is "twenty-seven billion, seven hundred ninety-seven million, two hundred thousand, thirteen".