53658787212 has 36 divisors (see below), whose sum is σ = 136837832040. Its totient is φ = 17727975552.

The previous prime is 53658787211. The next prime is 53658787249. The reversal of 53658787212 is 21278785635.

53658787212 is a `hidden beast` number, since 5 + 36 + 587 + 8 + 7 + 21 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (53658787211) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 6591162 + ... + 6599297.

It is an arithmetic number, because the mean of its divisors is an integer number (3801050890).

Almost surely, 2^53658787212 is an apocalyptic number.

It is an amenable number.

53658787212 is an abundant number, since it is smaller than the sum of its proper divisors (83179044828).

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

53658787212 is a wasteful number, since it uses less digits than its factorization.

53658787212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13190582 (or 13190577 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 54.

The spelling of 53658787212 in words is "fifty-three billion, six hundred fifty-eight million, seven hundred eighty-seven thousand, two hundred twelve".