20263002469 has 2 divisors, whose sum is σ = 20263002470. Its totient is φ = 20263002468.

The previous prime is 20263002439. The next prime is 20263002479. The reversal of 20263002469 is 96420036202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19729854369 + 533148100 = 140463^2 + 23090^2 .

It is a cyclic number.

It is not a de Polignac number, because 20263002469 - 2²¹ = 20260905317 is a prime.

It is a super-2 number, since 2×20263002469² (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 (20263002439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10131501234 + 10131501235.

It is an arithmetic number, because the mean of its divisors is an integer number (10131501235).

Almost surely, 2^20263002469 is an apocalyptic number.

It is an amenable number.

20263002469 is a deficient number, since it is larger than the sum of its proper divisors (1).

20263002469 is an equidigital number, since it uses as much as digits as its factorization.

20263002469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 34.

The spelling of 20263002469 in words is "twenty billion, two hundred sixty-three million, two thousand, four hundred sixty-nine".