47427290137 has 2 divisors, whose sum is σ = 47427290138. Its totient is φ = 47427290136.

The previous prime is 47427290129. The next prime is 47427290147. The reversal of 47427290137 is 73109272474.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31899388816 + 15527901321 = 178604^2 + 124611^2 .

It is a cyclic number.

It is not a de Polignac number, because 47427290137 - 2³ = 47427290129 is a prime.

It is not a weakly prime, because it can be changed into another prime (47427290147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23713645068 + 23713645069.

It is an arithmetic number, because the mean of its divisors is an integer number (23713645069).

Almost surely, 2^47427290137 is an apocalyptic number.

It is an amenable number.

47427290137 is a deficient number, since it is larger than the sum of its proper divisors (1).

47427290137 is an equidigital number, since it uses as much as digits as its factorization.

47427290137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 592704, while the sum is 46.

The spelling of 47427290137 in words is "forty-seven billion, four hundred twenty-seven million, two hundred ninety thousand, one hundred thirty-seven".