20279103539419 has 2 divisors, whose sum is σ = 20279103539420. Its totient is φ = 20279103539418.

The previous prime is 20279103539411. The next prime is 20279103539473. The reversal of 20279103539419 is 91493530197202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20279103539419 - 2³ = 20279103539411 is a prime.

It is a super-2 number, since 2×20279103539419² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20279103539419.

It is not a weakly prime, because it can be changed into another prime (20279103539411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10139551769709 + 10139551769710.

It is an arithmetic number, because the mean of its divisors is an integer number (10139551769710).

Almost surely, 2^{20279103539419} is an apocalyptic number.

20279103539419 is a deficient number, since it is larger than the sum of its proper divisors (1).

20279103539419 is an equidigital number, since it uses as much as digits as its factorization.

20279103539419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3674160, while the sum is 55.

The spelling of 20279103539419 in words is "twenty trillion, two hundred seventy-nine billion, one hundred three million, five hundred thirty-nine thousand, four hundred nineteen".