20702706896977 has 8 divisors (see below), whose sum is σ = 23678147316992. Its totient is φ = 17731744192800.

The previous prime is 20702706896897. The next prime is 20702706896981. The reversal of 20702706896977 is 77969860720702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20702706896977 - 2⁷ = 20702706896849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20702706896777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1119419049 + ... + 1119437542.

It is an arithmetic number, because the mean of its divisors is an integer number (2959768414624).

Almost surely, 2^{20702706896977} is an apocalyptic number.

It is an amenable number.

20702706896977 is a deficient number, since it is larger than the sum of its proper divisors (2975440420015).

20702706896977 is a wasteful number, since it uses less digits than its factorization.

20702706896977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2238857919.

The product of its (nonzero) digits is 224042112, while the sum is 70.

The spelling of 20702706896977 in words is "twenty trillion, seven hundred two billion, seven hundred six million, eight hundred ninety-six thousand, nine hundred seventy-seven".