20247773046 has 32 divisors (see below), whose sum is σ = 41193014400. Its totient is φ = 6633074880.

The previous prime is 20247772967. The next prime is 20247773047. The reversal of 20247773046 is 64037774202.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20247772989 and 20247773007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20247773047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2194090 + ... + 2203298.

It is an arithmetic number, because the mean of its divisors is an integer number (1287281700).

Almost surely, 2^20247773046 is an apocalyptic number.

20247773046 is an abundant number, since it is smaller than the sum of its proper divisors (20945241354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20247773046 is a wasteful number, since it uses less digits than its factorization.

20247773046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15484.

The product of its (nonzero) digits is 395136, while the sum is 42.

The spelling of 20247773046 in words is "twenty billion, two hundred forty-seven million, seven hundred seventy-three thousand, forty-six".