428133353762 has 16 divisors (see below), whose sum is σ = 643897010232. Its totient is φ = 213501150720.

The previous prime is 428133353723. The next prime is 428133353773. The reversal of 428133353762 is 267353331824.

It is a Cunningham number, because it is equal to 654319²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 428133353761 + 1 = 654319^2 + 1^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7483538 + ... + 7540530.

Almost surely, 2^428133353762 is an apocalyptic number.

428133353762 is a deficient number, since it is larger than the sum of its proper divisors (215763656470).

428133353762 is a wasteful number, since it uses less digits than its factorization.

428133353762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66853.

The product of its digits is 2177280, while the sum is 47.

The spelling of 428133353762 in words is "four hundred twenty-eight billion, one hundred thirty-three million, three hundred fifty-three thousand, seven hundred sixty-two".