20284992063 has 24 divisors (see below), whose sum is σ = 33497194016. Its totient is φ = 11587665600.

The previous prime is 20284992053. The next prime is 20284992067. The reversal of 20284992063 is 36029948202.

It is not a de Polignac number, because 20284992063 - 2⁸ = 20284991807 is a prime.

It is a super-2 number, since 2×20284992063² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20284992067) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149793 + ... + 251013.

Almost surely, 2^20284992063 is an apocalyptic number.

20284992063 is a deficient number, since it is larger than the sum of its proper divisors (13212201953).

20284992063 is a wasteful number, since it uses less digits than its factorization.

20284992063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104415 (or 104412 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 20284992063 in words is "twenty billion, two hundred eighty-four million, nine hundred ninety-two thousand, sixty-three".