196627725649 has 4 divisors (see below), whose sum is σ = 196664809536. Its totient is φ = 196590641764.

The previous prime is 196627725647. The next prime is 196627725653. The reversal of 196627725649 is 946527726691.

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 196627725649 - 2¹ = 196627725647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196627725641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18533989 + ... + 18544594.

It is an arithmetic number, because the mean of its divisors is an integer number (49166202384).

Almost surely, 2^196627725649 is an apocalyptic number.

It is an amenable number.

196627725649 is a deficient number, since it is larger than the sum of its proper divisors (37083887).

196627725649 is an equidigital number, since it uses as much as digits as its factorization.

196627725649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37083886.

The product of its digits is 68584320, while the sum is 64.

The spelling of 196627725649 in words is "one hundred ninety-six billion, six hundred twenty-seven million, seven hundred twenty-five thousand, six hundred forty-nine".