211972307752928 has 48 divisors (see below), whose sum is σ = 445241788470864. Its totient is φ = 98990211041280.

The previous prime is 211972307752913. The next prime is 211972307752949. The reversal of 211972307752928 is 829257703279112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1487161475 + ... + 1487304002.

It is an arithmetic number, because the mean of its divisors is an integer number (9275870593143).

Almost surely, 2^{211972307752928} is an apocalyptic number.

It is an amenable number.

211972307752928 is an abundant number, since it is smaller than the sum of its proper divisors (233269480717936).

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

211972307752928 is a wasteful number, since it uses less digits than its factorization.

211972307752928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2974465635 (or 2974465627 counting only the distinct ones).

The product of its (nonzero) digits is 53343360, while the sum is 65.

The spelling of 211972307752928 in words is "two hundred eleven trillion, nine hundred seventy-two billion, three hundred seven million, seven hundred fifty-two thousand, nine hundred twenty-eight".