20436463401 has 8 divisors (see below), whose sum is σ = 28433340480. Its totient is φ = 13031947632.

The previous prime is 20436463391. The next prime is 20436463429. The reversal of 20436463401 is 10436463402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20436463401 - 2⁷ = 20436463273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20436463001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148090246 + ... + 148090383.

It is an arithmetic number, because the mean of its divisors is an integer number (3554167560).

Almost surely, 2^20436463401 is an apocalyptic number.

It is an amenable number.

20436463401 is a deficient number, since it is larger than the sum of its proper divisors (7996877079).

20436463401 is a wasteful number, since it uses less digits than its factorization.

20436463401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296180655.

The product of its (nonzero) digits is 41472, while the sum is 33.

Subtracting from 20436463401 its reverse (10436463402), we obtain a palindrome (9999999999).

The spelling of 20436463401 in words is "twenty billion, four hundred thirty-six million, four hundred sixty-three thousand, four hundred one".