428880040019 has 2 divisors, whose sum is σ = 428880040020. Its totient is φ = 428880040018.

The previous prime is 428880040007. The next prime is 428880040081. The reversal of 428880040019 is 910040088824.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 428880040019 - 2¹² = 428880035923 is a prime.

It is a super-2 number, since 2×428880040019² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (428880040219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214440020009 + 214440020010.

It is an arithmetic number, because the mean of its divisors is an integer number (214440020010).

Almost surely, 2^428880040019 is an apocalyptic number.

428880040019 is a deficient number, since it is larger than the sum of its proper divisors (1).

428880040019 is an equidigital number, since it uses as much as digits as its factorization.

428880040019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 147456, while the sum is 44.

The spelling of 428880040019 in words is "four hundred twenty-eight billion, eight hundred eighty million, forty thousand, nineteen".