20370638047087 has 2 divisors, whose sum is σ = 20370638047088. Its totient is φ = 20370638047086.

The previous prime is 20370638047051. The next prime is 20370638047121. The reversal of 20370638047087 is 78074083607302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20370638047087 - 2¹¹ = 20370638045039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20370638047027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10185319023543 + 10185319023544.

It is an arithmetic number, because the mean of its divisors is an integer number (10185319023544).

Almost surely, 2^{20370638047087} is an apocalyptic number.

20370638047087 is a deficient number, since it is larger than the sum of its proper divisors (1).

20370638047087 is an equidigital number, since it uses as much as digits as its factorization.

20370638047087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9483264, while the sum is 55.

The spelling of 20370638047087 in words is "twenty trillion, three hundred seventy billion, six hundred thirty-eight million, forty-seven thousand, eighty-seven".