47700606649 has 2 divisors, whose sum is σ = 47700606650. Its totient is φ = 47700606648.

The previous prime is 47700606631. The next prime is 47700606661. The reversal of 47700606649 is 94660600774.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27225000000 + 20475606649 = 165000^2 + 143093^2 .

It is a cyclic number.

It is not a de Polignac number, because 47700606649 - 2⁷ = 47700606521 is a prime.

It is not a weakly prime, because it can be changed into another prime (47700606449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23850303324 + 23850303325.

It is an arithmetic number, because the mean of its divisors is an integer number (23850303325).

Almost surely, 2^47700606649 is an apocalyptic number.

It is an amenable number.

47700606649 is a deficient number, since it is larger than the sum of its proper divisors (1).

47700606649 is an equidigital number, since it uses as much as digits as its factorization.

47700606649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 49.

The spelling of 47700606649 in words is "forty-seven billion, seven hundred million, six hundred six thousand, six hundred forty-nine".