21480766312 has 32 divisors (see below), whose sum is σ = 42416121600. Its totient is φ = 10170330624.

The previous prime is 21480766297. The next prime is 21480766319. The reversal of 21480766312 is 21366708412.

It is a super-2 number, since 2×21480766312² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21480766319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303448 + ... + 367480.

It is an arithmetic number, because the mean of its divisors is an integer number (1325503800).

Almost surely, 2^21480766312 is an apocalyptic number.

It is an amenable number.

21480766312 is a deficient number, since it is larger than the sum of its proper divisors (20935355288).

21480766312 is a wasteful number, since it uses less digits than its factorization.

21480766312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66265 (or 66261 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 21480766312 in words is "twenty-one billion, four hundred eighty million, seven hundred sixty-six thousand, three hundred twelve".