20862004879 has 2 divisors, whose sum is σ = 20862004880. Its totient is φ = 20862004878.

The previous prime is 20862004843. The next prime is 20862004907. The reversal of 20862004879 is 97840026802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20862004879 - 2⁹ = 20862004367 is a prime.

It is a super-3 number, since 3×20862004879³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20862004379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10431002439 + 10431002440.

It is an arithmetic number, because the mean of its divisors is an integer number (10431002440).

Almost surely, 2^20862004879 is an apocalyptic number.

20862004879 is a deficient number, since it is larger than the sum of its proper divisors (1).

20862004879 is an equidigital number, since it uses as much as digits as its factorization.

20862004879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 20862004879 in words is "twenty billion, eight hundred sixty-two million, four thousand, eight hundred seventy-nine".