20794605929 has 2 divisors, whose sum is σ = 20794605930. Its totient is φ = 20794605928.

The previous prime is 20794605851. The next prime is 20794605961. The reversal of 20794605929 is 92950649702.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20778645904 + 15960025 = 144148^2 + 3995^2 .

It is a cyclic number.

It is not a de Polignac number, because 20794605929 - 2¹² = 20794601833 is a prime.

It is not a weakly prime, because it can be changed into another prime (20794605329) by changing a digit.

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 as a sum of consecutive naturals, namely, 10397302964 + 10397302965.

It is an arithmetic number, because the mean of its divisors is an integer number (10397302965).

Almost surely, 2^20794605929 is an apocalyptic number.

It is an amenable number.

20794605929 is a deficient number, since it is larger than the sum of its proper divisors (1).

20794605929 is an equidigital number, since it uses as much as digits as its factorization.

20794605929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2449440, while the sum is 53.

The spelling of 20794605929 in words is "twenty billion, seven hundred ninety-four million, six hundred five thousand, nine hundred twenty-nine".