47087815387139 has 2 divisors, whose sum is σ = 47087815387140. Its totient is φ = 47087815387138.

The previous prime is 47087815387127. The next prime is 47087815387153. The reversal of 47087815387139 is 93178351878074.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47087815387139 - 2⁸ = 47087815386883 is a prime.

It is not a weakly prime, because it can be changed into another prime (47087815387189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23543907693569 + 23543907693570.

It is an arithmetic number, because the mean of its divisors is an integer number (23543907693570).

Almost surely, 2^{47087815387139} is an apocalyptic number.

47087815387139 is a deficient number, since it is larger than the sum of its proper divisors (1).

47087815387139 is an equidigital number, since it uses as much as digits as its factorization.

47087815387139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 284497920, while the sum is 71.

The spelling of 47087815387139 in words is "forty-seven trillion, eighty-seven billion, eight hundred fifteen million, three hundred eighty-seven thousand, one hundred thirty-nine".