243628650720 has 1152 divisors, whose sum is σ = 1082395198080. Its totient is φ = 51355938816.

The previous prime is 243628650719. The next prime is 243628650757. The reversal of 243628650720 is 27056826342.

243628650720 is a `hidden beast` number, since 2 + 4 + 3 + 62 + 86 + 507 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 191 ways as a sum of consecutive naturals, for example, 222898494 + ... + 222899586.

It is an arithmetic number, because the mean of its divisors is an integer number (939579165).

Almost surely, 2^243628650720 is an apocalyptic number.

243628650720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243628650720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (541197599040).

243628650720 is an abundant number, since it is smaller than the sum of its proper divisors (838766547360).

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

243628650720 is a wasteful number, since it uses less digits than its factorization.

243628650720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156 (or 1123 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 243628650720 in words is "two hundred forty-three billion, six hundred twenty-eight million, six hundred fifty thousand, seven hundred twenty".