42511652128 has 36 divisors (see below), whose sum is σ = 91995135750. Its totient is φ = 19323476480.

The previous prime is 42511652119. The next prime is 42511652149. The reversal of 42511652128 is 82125611524.

It can be written as a sum of positive squares in only one way, i.e., 28741099024 + 13770553104 = 169532^2 + 117348^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5485753 + ... + 5493496.

Almost surely, 2^42511652128 is an apocalyptic number.

It is an amenable number.

42511652128 is an abundant number, since it is smaller than the sum of its proper divisors (49483483622).

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

42511652128 is a wasteful number, since it uses less digits than its factorization.

42511652128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10979281 (or 10979262 counting only the distinct ones).

The product of its digits is 38400, while the sum is 37.

The spelling of 42511652128 in words is "forty-two billion, five hundred eleven million, six hundred fifty-two thousand, one hundred twenty-eight".