47894196137 has 2 divisors, whose sum is σ = 47894196138. Its totient is φ = 47894196136.

The previous prime is 47894196109. The next prime is 47894196149. The reversal of 47894196137 is 73169149874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27136302361 + 20757893776 = 164731^2 + 144076^2 .

It is a cyclic number.

It is not a de Polignac number, because 47894196137 - 2¹² = 47894192041 is a prime.

It is not a weakly prime, because it can be changed into another prime (47894196037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23947098068 + 23947098069.

It is an arithmetic number, because the mean of its divisors is an integer number (23947098069).

Almost surely, 2^47894196137 is an apocalyptic number.

It is an amenable number.

47894196137 is a deficient number, since it is larger than the sum of its proper divisors (1).

47894196137 is an equidigital number, since it uses as much as digits as its factorization.

47894196137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9144576, while the sum is 59.

The spelling of 47894196137 in words is "forty-seven billion, eight hundred ninety-four million, one hundred ninety-six thousand, one hundred thirty-seven".