47357758649 has 2 divisors, whose sum is σ = 47357758650. Its totient is φ = 47357758648.

The previous prime is 47357758627. The next prime is 47357758661. The reversal of 47357758649 is 94685775374.

47357758649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47173668025 + 184090624 = 217195^2 + 13568^2 .

It is a cyclic number.

It is not a de Polignac number, because 47357758649 - 2³² = 43062791353 is a prime.

It is not a weakly prime, because it can be changed into another prime (47357758699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23678879324 + 23678879325.

It is an arithmetic number, because the mean of its divisors is an integer number (23678879325).

Almost surely, 2^47357758649 is an apocalyptic number.

It is an amenable number.

47357758649 is a deficient number, since it is larger than the sum of its proper divisors (1).

47357758649 is an equidigital number, since it uses as much as digits as its factorization.

47357758649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 177811200, while the sum is 65.

The spelling of 47357758649 in words is "forty-seven billion, three hundred fifty-seven million, seven hundred fifty-eight thousand, six hundred forty-nine".