21266829096 has 32 divisors (see below), whose sum is σ = 53171242560. Its totient is φ = 7088387072.

The previous prime is 21266829061. The next prime is 21266829097. The reversal of 21266829096 is 69092866212.

It is not an unprimeable number, because it can be changed into a prime (21266829097) 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 7 ways as a sum of consecutive naturals, for example, 377416 + ... + 430088.

It is an arithmetic number, because the mean of its divisors is an integer number (1661601330).

Almost surely, 2^21266829096 is an apocalyptic number.

It is an amenable number.

21266829096 is an abundant number, since it is smaller than the sum of its proper divisors (31904413464).

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

21266829096 is a wasteful number, since it uses less digits than its factorization.

21266829096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69505 (or 69501 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 51.

The spelling of 21266829096 in words is "twenty-one billion, two hundred sixty-six million, eight hundred twenty-nine thousand, ninety-six".