212183622672 has 160 divisors (see below), whose sum is σ = 666828748800. Its totient is φ = 56787692544.

The previous prime is 212183622649. The next prime is 212183622689. The reversal of 212183622672 is 276226381212.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 381453 + ... + 754899.

It is an arithmetic number, because the mean of its divisors is an integer number (4167679680).

Almost surely, 2^212183622672 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 212183622672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (333414374400).

212183622672 is an abundant number, since it is smaller than the sum of its proper divisors (454645126128).

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

212183622672 is a wasteful number, since it uses less digits than its factorization.

212183622672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373573 (or 373567 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The spelling of 212183622672 in words is "two hundred twelve billion, one hundred eighty-three million, six hundred twenty-two thousand, six hundred seventy-two".