47159077621 has 2 divisors, whose sum is σ = 47159077622. Its totient is φ = 47159077620.

The previous prime is 47159077597. The next prime is 47159077739. The reversal of 47159077621 is 12677095174.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45894492900 + 1264584721 = 214230^2 + 35561^2 .

It is a cyclic number.

It is not a de Polignac number, because 47159077621 - 2⁹ = 47159077109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47159077321) 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 as a sum of consecutive naturals, namely, 23579538810 + 23579538811.

It is an arithmetic number, because the mean of its divisors is an integer number (23579538811).

Almost surely, 2^47159077621 is an apocalyptic number.

It is an amenable number.

47159077621 is a deficient number, since it is larger than the sum of its proper divisors (1).

47159077621 is an equidigital number, since it uses as much as digits as its factorization.

47159077621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 740880, while the sum is 49.

The spelling of 47159077621 in words is "forty-seven billion, one hundred fifty-nine million, seventy-seven thousand, six hundred twenty-one".