20478076079 has 2 divisors, whose sum is σ = 20478076080. Its totient is φ = 20478076078.

The previous prime is 20478076043. The next prime is 20478076093. The reversal of 20478076079 is 97067087402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20478076079 - 2²⁴ = 20461298863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20478876079) 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, 10239038039 + 10239038040.

It is an arithmetic number, because the mean of its divisors is an integer number (10239038040).

Almost surely, 2^20478076079 is an apocalyptic number.

20478076079 is a deficient number, since it is larger than the sum of its proper divisors (1).

20478076079 is an equidigital number, since it uses as much as digits as its factorization.

20478076079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1185408, while the sum is 50.

The spelling of 20478076079 in words is "twenty billion, four hundred seventy-eight million, seventy-six thousand, seventy-nine".