428715905943 has 32 divisors (see below), whose sum is σ = 637520300032. Its totient is φ = 254482819200.

The previous prime is 428715905923. The next prime is 428715905999. The reversal of 428715905943 is 349509517824.

It is not a de Polignac number, because 428715905943 - 2¹² = 428715901847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428715905923) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 206368 + ... + 948693.

It is an arithmetic number, because the mean of its divisors is an integer number (19922509376).

Almost surely, 2^428715905943 is an apocalyptic number.

428715905943 is a deficient number, since it is larger than the sum of its proper divisors (208804394089).

428715905943 is a wasteful number, since it uses less digits than its factorization.

428715905943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155415.

The product of its (nonzero) digits is 10886400, while the sum is 57.

The spelling of 428715905943 in words is "four hundred twenty-eight billion, seven hundred fifteen million, nine hundred five thousand, nine hundred forty-three".