21102670296 has 96 divisors (see below), whose sum is σ = 57477420000. Its totient is φ = 6994432512.

The previous prime is 21102670291. The next prime is 21102670297. The reversal of 21102670296 is 69207620112.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 21102670296.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21102670291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11030236 + ... + 11032148.

It is an arithmetic number, because the mean of its divisors is an integer number (598723125).

Almost surely, 2^21102670296 is an apocalyptic number.

It is an amenable number.

21102670296 is an abundant number, since it is smaller than the sum of its proper divisors (36374749704).

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

21102670296 is a wasteful number, since it uses less digits than its factorization.

21102670296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2713 (or 2706 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 21102670296 in words is "twenty-one billion, one hundred two million, six hundred seventy thousand, two hundred ninety-six".