21097414248 has 16 divisors (see below), whose sum is σ = 52743535680. Its totient is φ = 7032471408.

The previous prime is 21097414223. The next prime is 21097414267. The reversal of 21097414248 is 84241479012.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 439529440 + ... + 439529487.

It is an arithmetic number, because the mean of its divisors is an integer number (3296470980).

Almost surely, 2^21097414248 is an apocalyptic number.

It is an amenable number.

21097414248 is an abundant number, since it is smaller than the sum of its proper divisors (31646121432).

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

21097414248 is a wasteful number, since it uses less digits than its factorization.

21097414248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879058936 (or 879058932 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 21097414248 in words is "twenty-one billion, ninety-seven million, four hundred fourteen thousand, two hundred forty-eight".