12430778193527 has 2 divisors, whose sum is σ = 12430778193528. Its totient is φ = 12430778193526.

The previous prime is 12430778193469. The next prime is 12430778193539. The reversal of 12430778193527 is 72539187703421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12430778193527 - 2¹⁴ = 12430778177143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12430778193227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6215389096763 + 6215389096764.

It is an arithmetic number, because the mean of its divisors is an integer number (6215389096764).

Almost surely, 2^{12430778193527} is an apocalyptic number.

12430778193527 is a deficient number, since it is larger than the sum of its proper divisors (1).

12430778193527 is an equidigital number, since it uses as much as digits as its factorization.

12430778193527 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17781120, while the sum is 59.

The spelling of 12430778193527 in words is "twelve trillion, four hundred thirty billion, seven hundred seventy-eight million, one hundred ninety-three thousand, five hundred twenty-seven".