47445705077 has 2 divisors, whose sum is σ = 47445705078. Its totient is φ = 47445705076.

The previous prime is 47445705053. The next prime is 47445705091. The reversal of 47445705077 is 77050754474.

47445705077 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., 47297985361 + 147719716 = 217481^2 + 12154^2 .

It is a cyclic number.

It is not a de Polignac number, because 47445705077 - 2²² = 47441510773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47445708077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23722852538 + 23722852539.

It is an arithmetic number, because the mean of its divisors is an integer number (23722852539).

Almost surely, 2^47445705077 is an apocalyptic number.

It is an amenable number.

47445705077 is a deficient number, since it is larger than the sum of its proper divisors (1).

47445705077 is an equidigital number, since it uses as much as digits as its factorization.

47445705077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3841600, while the sum is 50.

The spelling of 47445705077 in words is "forty-seven billion, four hundred forty-five million, seven hundred five thousand, seventy-seven".