21463225312 has 24 divisors (see below), whose sum is σ = 42271551000. Its totient is φ = 10727593344.

The previous prime is 21463225283. The next prime is 21463225319. The reversal of 21463225312 is 21352236412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21463225319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37887 + ... + 210622.

It is an arithmetic number, because the mean of its divisors is an integer number (1761314625).

Almost surely, 2^21463225312 is an apocalyptic number.

It is an amenable number.

21463225312 is a deficient number, since it is larger than the sum of its proper divisors (20808325688).

21463225312 is a wasteful number, since it uses less digits than its factorization.

21463225312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251218 (or 251210 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The spelling of 21463225312 in words is "twenty-one billion, four hundred sixty-three million, two hundred twenty-five thousand, three hundred twelve".