20404414303979 has 2 divisors, whose sum is σ = 20404414303980. Its totient is φ = 20404414303978.

The previous prime is 20404414303939. The next prime is 20404414304077. The reversal of 20404414303979 is 97930341440402.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20404414303979 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (20404414303939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10202207151989 + 10202207151990.

It is an arithmetic number, because the mean of its divisors is an integer number (10202207151990).

Almost surely, 2^{20404414303979} is an apocalyptic number.

20404414303979 is a deficient number, since it is larger than the sum of its proper divisors (1).

20404414303979 is an equidigital number, since it uses as much as digits as its factorization.

20404414303979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2612736, while the sum is 50.

The spelling of 20404414303979 in words is "twenty trillion, four hundred four billion, four hundred fourteen million, three hundred three thousand, nine hundred seventy-nine".