21464680750 has 16 divisors (see below), whose sum is σ = 40181882832. Its totient is φ = 8585872200.

The previous prime is 21464680739. The next prime is 21464680771. The reversal of 21464680750 is 5708646412.

It is a junction number, because it is equal to n+sod(n) for n = 21464680697 and 21464680706.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42929112 + ... + 42929611.

It is an arithmetic number, because the mean of its divisors is an integer number (2511367677).

Almost surely, 2^21464680750 is an apocalyptic number.

21464680750 is a deficient number, since it is larger than the sum of its proper divisors (18717202082).

21464680750 is an equidigital number, since it uses as much as digits as its factorization.

21464680750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85858740 (or 85858730 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

It can be divided in two parts, 2146 and 4680750, that added together give a square (4682896 = 2164²).

The spelling of 21464680750 in words is "twenty-one billion, four hundred sixty-four million, six hundred eighty thousand, seven hundred fifty".