75736372212 has 18 divisors (see below), whose sum is σ = 191444718738. Its totient is φ = 25245457392.

The previous prime is 75736372177. The next prime is 75736372213. The reversal of 75736372212 is 21227363757.

It is a happy number.

75736372212 is a `hidden beast` number, since 7 + 5 + 7 + 3 + 637 + 2 + 2 + 1 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 48221524836 + 27514847376 = 219594^2 + 165876^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75736372213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1051894023 + ... + 1051894094.

Almost surely, 2^75736372212 is an apocalyptic number.

It is an amenable number.

75736372212 is an abundant number, since it is smaller than the sum of its proper divisors (115708346526).

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

75736372212 is a wasteful number, since it uses less digits than its factorization.

75736372212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2103788127 (or 2103788122 counting only the distinct ones).

The product of its digits is 740880, while the sum is 45.

The spelling of 75736372212 in words is "seventy-five billion, seven hundred thirty-six million, three hundred seventy-two thousand, two hundred twelve".