20928732326 has 16 divisors (see below), whose sum is σ = 32765560128. Its totient is φ = 10016510400.

The previous prime is 20928732311. The next prime is 20928732337. The reversal of 20928732326 is 62323782902.

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, 2403470 + ... + 2412161.

It is an arithmetic number, because the mean of its divisors is an integer number (2047847508).

Almost surely, 2^20928732326 is an apocalyptic number.

20928732326 is a deficient number, since it is larger than the sum of its proper divisors (11836827802).

20928732326 is a wasteful number, since it uses less digits than its factorization.

20928732326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4815727.

The product of its (nonzero) digits is 435456, while the sum is 44.

The spelling of 20928732326 in words is "twenty billion, nine hundred twenty-eight million, seven hundred thirty-two thousand, three hundred twenty-six".