75628228434 has 64 divisors (see below), whose sum is σ = 170790819840. Its totient is φ = 22115213120.

The previous prime is 75628228427. The next prime is 75628228439. The reversal of 75628228434 is 43482282657.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (75628228439) 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, 3823879 + ... + 3843605.

It is an arithmetic number, because the mean of its divisors is an integer number (2668606560).

Almost surely, 2^75628228434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75628228434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85395409920).

75628228434 is an abundant number, since it is smaller than the sum of its proper divisors (95162591406).

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

75628228434 is a wasteful number, since it uses less digits than its factorization.

75628228434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21775.

The product of its digits is 5160960, while the sum is 51.

The spelling of 75628228434 in words is "seventy-five billion, six hundred twenty-eight million, two hundred twenty-eight thousand, four hundred thirty-four".