75445641228 has 48 divisors (see below), whose sum is σ = 180819023616. Its totient is φ = 24470255040.

The previous prime is 75445641217. The next prime is 75445641241. The reversal of 75445641228 is 82214654457.

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, 142263 + ... + 413678.

It is an arithmetic number, because the mean of its divisors is an integer number (3767062992).

Almost surely, 2^75445641228 is an apocalyptic number.

It is an amenable number.

75445641228 is an abundant number, since it is smaller than the sum of its proper divisors (105373382388).

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

75445641228 is a wasteful number, since it uses less digits than its factorization.

75445641228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556254 (or 556252 counting only the distinct ones).

The product of its digits is 2150400, while the sum is 48.

The spelling of 75445641228 in words is "seventy-five billion, four hundred forty-five million, six hundred forty-one thousand, two hundred twenty-eight".