20003455279 has 2 divisors, whose sum is σ = 20003455280. Its totient is φ = 20003455278.

The previous prime is 20003455259. The next prime is 20003455301. The reversal of 20003455279 is 97255430002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20003455279 - 2¹⁵ = 20003422511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20003455259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001727639 + 10001727640.

It is an arithmetic number, because the mean of its divisors is an integer number (10001727640).

Almost surely, 2^20003455279 is an apocalyptic number.

20003455279 is a deficient number, since it is larger than the sum of its proper divisors (1).

20003455279 is an equidigital number, since it uses as much as digits as its factorization.

20003455279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 37.

The spelling of 20003455279 in words is "twenty billion, three million, four hundred fifty-five thousand, two hundred seventy-nine".