20263002479 has 2 divisors, whose sum is σ = 20263002480. Its totient is φ = 20263002478.

The previous prime is 20263002469. The next prime is 20263002569. The reversal of 20263002479 is 97420036202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20263002479 - 2¹⁶ = 20262936943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20263002439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10131501239 + 10131501240.

It is an arithmetic number, because the mean of its divisors is an integer number (10131501240).

Almost surely, 2^20263002479 is an apocalyptic number.

20263002479 is a deficient number, since it is larger than the sum of its proper divisors (1).

20263002479 is an equidigital number, since it uses as much as digits as its factorization.

20263002479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 35.

The spelling of 20263002479 in words is "twenty billion, two hundred sixty-three million, two thousand, four hundred seventy-nine".