21753046212 has 24 divisors (see below), whose sum is σ = 51020103456. Its totient is φ = 7213444608.

The previous prime is 21753046207. The next prime is 21753046213. The reversal of 21753046212 is 21264035712.

It is not an unprimeable number, because it can be changed into a prime (21753046213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4693938 + ... + 4698569.

It is an arithmetic number, because the mean of its divisors is an integer number (2125837644).

Almost surely, 2^21753046212 is an apocalyptic number.

It is an amenable number.

21753046212 is an abundant number, since it is smaller than the sum of its proper divisors (29267057244).

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

21753046212 is a wasteful number, since it uses less digits than its factorization.

21753046212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9392707 (or 9392705 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The spelling of 21753046212 in words is "twenty-one billion, seven hundred fifty-three million, forty-six thousand, two hundred twelve".