20463636763 has 16 divisors (see below), whose sum is σ = 22473262080. Its totient is φ = 18547035136.

The previous prime is 20463636761. The next prime is 20463636793. The reversal of 20463636763 is 36763636402.

It is a cyclic number.

It is not a de Polignac number, because 20463636763 - 2¹ = 20463636761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20463636761) 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 15 ways as a sum of consecutive naturals, for example, 134631 + ... + 243007.

It is an arithmetic number, because the mean of its divisors is an integer number (1404578880).

Almost surely, 2^20463636763 is an apocalyptic number.

20463636763 is a deficient number, since it is larger than the sum of its proper divisors (2009625317).

20463636763 is a wasteful number, since it uses less digits than its factorization.

20463636763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108806.

The product of its (nonzero) digits is 1959552, while the sum is 46.

The spelling of 20463636763 in words is "twenty billion, four hundred sixty-three million, six hundred thirty-six thousand, seven hundred sixty-three".