428358027994 has 64 divisors (see below), whose sum is σ = 712982178720. Its totient is φ = 191802240000.

The previous prime is 428358027991. The next prime is 428358027997. The reversal of 428358027994 is 499720853824.

It is an interprime number because it is at equal distance from previous prime (428358027991) and next prime (428358027997).

It can be written as a sum of positive squares in 16 ways, for example, as 84498931969 + 343859096025 = 290687^2 + 586395^2 .

It is a Harshad number since it is a multiple of its sum of digits (61).

It is not an unprimeable number, because it can be changed into a prime (428358027991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43085064 + ... + 43095004.

Almost surely, 2^428358027994 is an apocalyptic number.

428358027994 is a deficient number, since it is larger than the sum of its proper divisors (284624150726).

428358027994 is a wasteful number, since it uses less digits than its factorization.

428358027994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10387.

The product of its (nonzero) digits is 34836480, while the sum is 61.

The spelling of 428358027994 in words is "four hundred twenty-eight billion, three hundred fifty-eight million, twenty-seven thousand, nine hundred ninety-four".