20829076926445 has 16 divisors (see below), whose sum is σ = 26471826555840. Its totient is φ = 15689399618304.

The previous prime is 20829076926439. The next prime is 20829076926467. The reversal of 20829076926445 is 54462967092802.

It is a cyclic number.

It is not a de Polignac number, because 20829076926445 - 2³¹ = 20826929442797 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 672541084 + ... + 672572053.

It is an arithmetic number, because the mean of its divisors is an integer number (1654489159740).

Almost surely, 2^{20829076926445} is an apocalyptic number.

It is an amenable number.

20829076926445 is a deficient number, since it is larger than the sum of its proper divisors (5642749629395).

20829076926445 is a wasteful number, since it uses less digits than its factorization.

20829076926445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345113324.

The product of its (nonzero) digits is 104509440, while the sum is 64.

The spelling of 20829076926445 in words is "twenty trillion, eight hundred twenty-nine billion, seventy-six million, nine hundred twenty-six thousand, four hundred forty-five".