28744303171431 has 16 divisors (see below), whose sum is σ = 38744852896256. Its totient is φ = 18953763237216.

The previous prime is 28744303171319. The next prime is 28744303171439. The reversal of 28744303171431 is 13417130344782.

It is not a de Polignac number, because 28744303171431 - 2²⁹ = 28743766300519 is a prime.

It is a super-2 number, since 2×28744303171431² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28744303171439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56260660 + ... + 56769273.

It is an arithmetic number, because the mean of its divisors is an integer number (2421553306016).

Almost surely, 2^{28744303171431} is an apocalyptic number.

28744303171431 is a deficient number, since it is larger than the sum of its proper divisors (10000549724825).

28744303171431 is a wasteful number, since it uses less digits than its factorization.

28744303171431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113030862.

The product of its (nonzero) digits is 1354752, while the sum is 48.

The spelling of 28744303171431 in words is "twenty-eight trillion, seven hundred forty-four billion, three hundred three million, one hundred seventy-one thousand, four hundred thirty-one".