426308343787 has 2 divisors, whose sum is σ = 426308343788. Its totient is φ = 426308343786.

The previous prime is 426308343719. The next prime is 426308343823. The reversal of 426308343787 is 787343803624.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426308343787 is a prime.

It is not a weakly prime, because it can be changed into another prime (426308341787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213154171893 + 213154171894.

It is an arithmetic number, because the mean of its divisors is an integer number (213154171894).

Almost surely, 2^426308343787 is an apocalyptic number.

426308343787 is a deficient number, since it is larger than the sum of its proper divisors (1).

426308343787 is an equidigital number, since it uses as much as digits as its factorization.

426308343787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16257024, while the sum is 55.

The spelling of 426308343787 in words is "four hundred twenty-six billion, three hundred eight million, three hundred forty-three thousand, seven hundred eighty-seven".