20020179479 has 2 divisors, whose sum is σ = 20020179480. Its totient is φ = 20020179478.

The previous prime is 20020179401. The next prime is 20020179503. The reversal of 20020179479 is 97497102002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20020179479 - 2¹⁶ = 20020113943 is a prime.

It is a super-2 number, since 2×20020179479² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20020179379) 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, 10010089739 + 10010089740.

It is an arithmetic number, because the mean of its divisors is an integer number (10010089740).

Almost surely, 2^20020179479 is an apocalyptic number.

20020179479 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020179479 is an equidigital number, since it uses as much as digits as its factorization.

20020179479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 41.

The spelling of 20020179479 in words is "twenty billion, twenty million, one hundred seventy-nine thousand, four hundred seventy-nine".