428216749530 has 32 divisors (see below), whose sum is σ = 1027738058688. Its totient is φ = 114189148800.

The previous prime is 428216749517. The next prime is 428216749547. The reversal of 428216749530 is 35947612824.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2643270 + ... + 2800590.

It is an arithmetic number, because the mean of its divisors is an integer number (32116814334).

It is a 1-persistent number, because it is pandigital, but 2⋅428216749530 = 856433499060 is not.

Almost surely, 2^428216749530 is an apocalyptic number.

428216749530 is an abundant number, since it is smaller than the sum of its proper divisors (599521309158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428216749530 is a wasteful number, since it uses less digits than its factorization.

428216749530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248062.

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 428216749530 in words is "four hundred twenty-eight billion, two hundred sixteen million, seven hundred forty-nine thousand, five hundred thirty".