57388558212 has 96 divisors (see below), whose sum is σ = 152659382400. Its totient is φ = 18632908800.

The previous prime is 57388558177. The next prime is 57388558223. The reversal of 57388558212 is 21285588375.

57388558212 is a `hidden beast` number, since 5 + 7 + 3 + 88 + 558 + 2 + 1 + 2 = 666.

It is a super-2 number, since 2×57388558212² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2828239 + ... + 2848457.

It is an arithmetic number, because the mean of its divisors is an integer number (1590201900).

Almost surely, 2^57388558212 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 57388558212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76329691200).

57388558212 is an abundant number, since it is smaller than the sum of its proper divisors (95270824188).

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

57388558212 is a wasteful number, since it uses less digits than its factorization.

57388558212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20914 (or 20906 counting only the distinct ones).

The product of its digits is 5376000, while the sum is 54.

The spelling of 57388558212 in words is "fifty-seven billion, three hundred eighty-eight million, five hundred fifty-eight thousand, two hundred twelve".