2196427458949 has 4 divisors (see below), whose sum is σ = 2197184067936. Its totient is φ = 2195670849964.

The previous prime is 2196427458913. The next prime is 2196427458991. The reversal of 2196427458949 is 9498547246912.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2196427458949 - 2⁷ = 2196427458821 is a prime.

It is a super-3 number, since 3×2196427458949³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2196427452949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378300139 + ... + 378305944.

It is an arithmetic number, because the mean of its divisors is an integer number (549296016984).

Almost surely, 2^{2196427458949} is an apocalyptic number.

It is an amenable number.

2196427458949 is a deficient number, since it is larger than the sum of its proper divisors (756608987).

2196427458949 is an equidigital number, since it uses as much as digits as its factorization.

2196427458949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756608986.

The product of its digits is 313528320, while the sum is 70.

The spelling of 2196427458949 in words is "two trillion, one hundred ninety-six billion, four hundred twenty-seven million, four hundred fifty-eight thousand, nine hundred forty-nine".