75542140212 has 96 divisors (see below), whose sum is σ = 220333768704. Its totient is φ = 19570012800.

The previous prime is 75542140207. The next prime is 75542140259. The reversal of 75542140212 is 21204124557.

It is a super-2 number, since 2×75542140212² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 247162 + ... + 460622.

It is an arithmetic number, because the mean of its divisors is an integer number (2295143424).

Almost surely, 2^75542140212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75542140212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110166884352).

75542140212 is an abundant number, since it is smaller than the sum of its proper divisors (144791628492).

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

75542140212 is a wasteful number, since it uses less digits than its factorization.

75542140212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213869 (or 213867 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 33.

Adding to 75542140212 its reverse (21204124557), we get a palindrome (96746264769).

The spelling of 75542140212 in words is "seventy-five billion, five hundred forty-two million, one hundred forty thousand, two hundred twelve".