28571671429 has 8 divisors (see below), whose sum is σ = 32654367360. Its totient is φ = 24489232656.

The previous prime is 28571671423. The next prime is 28571671523. The reversal of 28571671429 is 92417617582.

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

It is a de Polignac number, because none of the positive numbers 2^k-28571671429 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 (28571671423) 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, 364287 + ... + 435715.

It is an arithmetic number, because the mean of its divisors is an integer number (4081795920).

Almost surely, 2^28571671429 is an apocalyptic number.

It is an amenable number.

28571671429 is a deficient number, since it is larger than the sum of its proper divisors (4082695931).

28571671429 is an equidigital number, since it uses as much as digits as its factorization.

28571671429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128579.

The product of its digits is 1693440, while the sum is 52.

It can be divided in two parts, 285716 and 71429, that multiplied together give a square (20408408164 = 142858²).

The spelling of 28571671429 in words is "twenty-eight billion, five hundred seventy-one million, six hundred seventy-one thousand, four hundred twenty-nine".