20431762044 has 12 divisors (see below), whose sum is σ = 47674111464. Its totient is φ = 6810587344.

The previous prime is 20431762033. The next prime is 20431762061. The reversal of 20431762044 is 44026713402.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 20431761996 and 20431762014.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 851323407 + ... + 851323430.

It is an arithmetic number, because the mean of its divisors is an integer number (3972842622).

Almost surely, 2^20431762044 is an apocalyptic number.

It is an amenable number.

20431762044 is an abundant number, since it is smaller than the sum of its proper divisors (27242349420).

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

20431762044 is a wasteful number, since it uses less digits than its factorization.

20431762044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702646844 (or 1702646842 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 33.

The spelling of 20431762044 in words is "twenty billion, four hundred thirty-one million, seven hundred sixty-two thousand, forty-four".