427178787047 has 2 divisors, whose sum is σ = 427178787048. Its totient is φ = 427178787046.

The previous prime is 427178787017. The next prime is 427178787059. The reversal of 427178787047 is 740787871724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 427178787047 - 2¹⁶ = 427178721511 is a prime.

It is a super-2 number, since 2×427178787047² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427178787017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213589393523 + 213589393524.

It is an arithmetic number, because the mean of its divisors is an integer number (213589393524).

Almost surely, 2^427178787047 is an apocalyptic number.

427178787047 is a deficient number, since it is larger than the sum of its proper divisors (1).

427178787047 is an equidigital number, since it uses as much as digits as its factorization.

427178787047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34420736, while the sum is 62.

The spelling of 427178787047 in words is "four hundred twenty-seven billion, one hundred seventy-eight million, seven hundred eighty-seven thousand, forty-seven".