47477610121 has 2 divisors, whose sum is σ = 47477610122. Its totient is φ = 47477610120.

The previous prime is 47477610083. The next prime is 47477610139. The reversal of 47477610121 is 12101677474.

47477610121 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., 36342084496 + 11135525625 = 190636^2 + 105525^2 .

It is a cyclic number.

It is not a de Polignac number, because 47477610121 - 2¹³ = 47477601929 is a prime.

It is not a weakly prime, because it can be changed into another prime (47477610221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23738805060 + 23738805061.

It is an arithmetic number, because the mean of its divisors is an integer number (23738805061).

Almost surely, 2^47477610121 is an apocalyptic number.

It is an amenable number.

47477610121 is a deficient number, since it is larger than the sum of its proper divisors (1).

47477610121 is an equidigital number, since it uses as much as digits as its factorization.

47477610121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 65856, while the sum is 40.

The spelling of 47477610121 in words is "forty-seven billion, four hundred seventy-seven million, six hundred ten thousand, one hundred twenty-one".