20263363426 has 4 divisors (see below), whose sum is σ = 30395045142. Its totient is φ = 10131681712.

The previous prime is 20263363391. The next prime is 20263363429. The reversal of 20263363426 is 62436336202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19279600201 + 983763225 = 138851^2 + 31365^2 .

It is not an unprimeable number, because it can be changed into a prime (20263363429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5065840855 + ... + 5065840858.

Almost surely, 2^20263363426 is an apocalyptic number.

20263363426 is a deficient number, since it is larger than the sum of its proper divisors (10131681716).

20263363426 is a wasteful number, since it uses less digits than its factorization.

20263363426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10131681715.

The product of its (nonzero) digits is 186624, while the sum is 37.

Adding to 20263363426 its reverse (62436336202), we get a palindrome (82699699628).

The spelling of 20263363426 in words is "twenty billion, two hundred sixty-three million, three hundred sixty-three thousand, four hundred twenty-six".