27298191949 has 16 divisors (see below), whose sum is σ = 33132951936. Its totient is φ = 21955507200.

The previous prime is 27298191929. The next prime is 27298191997. The reversal of 27298191949 is 94919189272.

It is a cyclic number.

It is not a de Polignac number, because 27298191949 - 2¹⁷ = 27298060877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27298191929) 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, 307132 + ... + 385909.

It is an arithmetic number, because the mean of its divisors is an integer number (2070809496).

Almost surely, 2^27298191949 is an apocalyptic number.

It is an amenable number.

27298191949 is a deficient number, since it is larger than the sum of its proper divisors (5834759987).

27298191949 is a wasteful number, since it uses less digits than its factorization.

27298191949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693396.

The product of its digits is 5878656, while the sum is 61.

The spelling of 27298191949 in words is "twenty-seven billion, two hundred ninety-eight million, one hundred ninety-one thousand, nine hundred forty-nine".