428168587403 has 2 divisors, whose sum is σ = 428168587404. Its totient is φ = 428168587402.

The previous prime is 428168587373. The next prime is 428168587459. The reversal of 428168587403 is 304785861824.

It is an a-pointer prime, because the next prime (428168587459) can be obtained adding 428168587403 to its sum of digits (56).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 428168587403 - 2¹⁶ = 428168521867 is a prime.

It is not a weakly prime, because it can be changed into another prime (428168587493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214084293701 + 214084293702.

It is an arithmetic number, because the mean of its divisors is an integer number (214084293702).

Almost surely, 2^428168587403 is an apocalyptic number.

428168587403 is a deficient number, since it is larger than the sum of its proper divisors (1).

428168587403 is an equidigital number, since it uses as much as digits as its factorization.

428168587403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10321920, while the sum is 56.

The spelling of 428168587403 in words is "four hundred twenty-eight billion, one hundred sixty-eight million, five hundred eighty-seven thousand, four hundred three".