20144731429 has 8 divisors (see below), whose sum is σ = 20575421568. Its totient is φ = 19714128000.

The previous prime is 20144731427. The next prime is 20144731463. The reversal of 20144731429 is 92413744102.

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

It is a cyclic number.

It is not a de Polignac number, because 20144731429 - 2¹ = 20144731427 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20144731423) 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, 705429 + ... + 733429.

It is an arithmetic number, because the mean of its divisors is an integer number (2571927696).

Almost surely, 2^20144731429 is an apocalyptic number.

It is an amenable number.

20144731429 is a deficient number, since it is larger than the sum of its proper divisors (430690139).

20144731429 is a wasteful number, since it uses less digits than its factorization.

20144731429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43355.

The product of its (nonzero) digits is 48384, while the sum is 37.

The spelling of 20144731429 in words is "twenty billion, one hundred forty-four million, seven hundred thirty-one thousand, four hundred twenty-nine".