44128909528 has 32 divisors (see below), whose sum is σ = 90363360960. Its totient is φ = 20036443680.

The previous prime is 44128909511. The next prime is 44128909607. The reversal of 44128909528 is 82590982144.

It is a happy number.

It is a super-2 number, since 2×44128909528² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 196626 + ... + 356257.

It is an arithmetic number, because the mean of its divisors is an integer number (2823855030).

Almost surely, 2^44128909528 is an apocalyptic number.

It is an amenable number.

44128909528 is an abundant number, since it is smaller than the sum of its proper divisors (46234451432).

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

44128909528 is a wasteful number, since it uses less digits than its factorization.

44128909528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553807 (or 553803 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 52.

The spelling of 44128909528 in words is "forty-four billion, one hundred twenty-eight million, nine hundred nine thousand, five hundred twenty-eight".