21963036912 has 40 divisors (see below), whose sum is σ = 56777782656. Its totient is φ = 7315859136.

The previous prime is 21963036877. The next prime is 21963036961.

It is a happy number.

21963036912 is nontrivially palindromic in base 10.

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, 91828 + ... + 228819.

Almost surely, 2^21963036912 is an apocalyptic number.

It is an amenable number.

21963036912 is an abundant number, since it is smaller than the sum of its proper divisors (34814745744).

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

21963036912 is a wasteful number, since it uses less digits than its factorization.

21963036912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322085 (or 322079 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 42.

The spelling of 21963036912 in words is "twenty-one billion, nine hundred sixty-three million, thirty-six thousand, nine hundred twelve".