21676796570 has 128 divisors (see below), whose sum is σ = 48867840000. Its totient is φ = 6805244160.

The previous prime is 21676796527. The next prime is 21676796597. The reversal of 21676796570 is 7569767612.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2141381 + ... + 2151479.

It is an arithmetic number, because the mean of its divisors is an integer number (381780000).

Almost surely, 2^21676796570 is an apocalyptic number.

21676796570 is an abundant number, since it is smaller than the sum of its proper divisors (27191043430).

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

21676796570 is a wasteful number, since it uses less digits than its factorization.

21676796570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10228.

The product of its (nonzero) digits is 6667920, while the sum is 56.

The spelling of 21676796570 in words is "twenty-one billion, six hundred seventy-six million, seven hundred ninety-six thousand, five hundred seventy".