20767473633963 has 8 divisors (see below), whose sum is σ = 31645674108928. Its totient is φ = 11867127790824.

The previous prime is 20767473633961. The next prime is 20767473633967. The reversal of 20767473633963 is 36933637476702.

It is a happy number.

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

It is not a de Polignac number, because 20767473633963 - 2¹ = 20767473633961 is a prime.

It is a super-2 number, since 2×20767473633963² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20767473633894 and 20767473633903.

It is not an unprimeable number, because it can be changed into a prime (20767473633961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 494463657931 + ... + 494463657972.

It is an arithmetic number, because the mean of its divisors is an integer number (3955709263616).

Almost surely, 2^{20767473633963} is an apocalyptic number.

20767473633963 is a deficient number, since it is larger than the sum of its proper divisors (10878200474965).

20767473633963 is an equidigital number, since it uses as much as digits as its factorization.

20767473633963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988927315913.

The product of its (nonzero) digits is 432081216, while the sum is 66.

The spelling of 20767473633963 in words is "twenty trillion, seven hundred sixty-seven billion, four hundred seventy-three million, six hundred thirty-three thousand, nine hundred sixty-three".