21754445712 has 40 divisors (see below), whose sum is σ = 56329430400. Its totient is φ = 7234650240.

The previous prime is 21754445689. The next prime is 21754445723.

21754445712 is nontrivially palindromic in base 10.

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, 505087 + ... + 546462.

It is an arithmetic number, because the mean of its divisors is an integer number (1408235760).

Almost surely, 2^21754445712 is an apocalyptic number.

It is an amenable number.

21754445712 is an abundant number, since it is smaller than the sum of its proper divisors (34574984688).

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

21754445712 is a wasteful number, since it uses less digits than its factorization.

21754445712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051991 (or 1051985 counting only the distinct ones).

The product of its digits is 313600, while the sum is 42.

The spelling of 21754445712 in words is "twenty-one billion, seven hundred fifty-four million, four hundred forty-five thousand, seven hundred twelve".