428776734530 has 16 divisors (see below), whose sum is σ = 771822070200. Its totient is φ = 171505372032.

The previous prime is 428776734497. The next prime is 428776734553. The reversal of 428776734530 is 35437677824.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 75861134041 + 352915600489 = 275429^2 + 594067^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318209 + ... + 979188.

Almost surely, 2^428776734530 is an apocalyptic number.

428776734530 is a deficient number, since it is larger than the sum of its proper divisors (343045335670).

428776734530 is a wasteful number, since it uses less digits than its factorization.

428776734530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330453.

The product of its (nonzero) digits is 23708160, while the sum is 56.

The spelling of 428776734530 in words is "four hundred twenty-eight billion, seven hundred seventy-six million, seven hundred thirty-four thousand, five hundred thirty".