21203276696 has 32 divisors (see below), whose sum is σ = 45946116000. Its totient is φ = 8985014016.

The previous prime is 21203276683. The next prime is 21203276711. The reversal of 21203276696 is 69667230212.

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, 2122151 + ... + 2132118.

It is an arithmetic number, because the mean of its divisors is an integer number (1435816125).

Almost surely, 2^21203276696 is an apocalyptic number.

It is an amenable number.

21203276696 is an abundant number, since it is smaller than the sum of its proper divisors (24742839304).

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

21203276696 is a wasteful number, since it uses less digits than its factorization.

21203276696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4254371 (or 4254367 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 44.

The spelling of 21203276696 in words is "twenty-one billion, two hundred three million, two hundred seventy-six thousand, six hundred ninety-six".