28156714269 has 8 divisors (see below), whose sum is σ = 38341057920. Its totient is φ = 18371756736.

The previous prime is 28156714259. The next prime is 28156714273. The reversal of 28156714269 is 96241765182.

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

It is not a de Polignac number, because 28156714269 - 2⁵ = 28156714237 is a prime.

It is a super-2 number, since 2×28156714269² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28156714259) 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, 99846364 + ... + 99846645.

It is an arithmetic number, because the mean of its divisors is an integer number (4792632240).

Almost surely, 2^28156714269 is an apocalyptic number.

It is an amenable number.

28156714269 is a deficient number, since it is larger than the sum of its proper divisors (10184343651).

28156714269 is a wasteful number, since it uses less digits than its factorization.

28156714269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199693059.

The product of its digits is 1451520, while the sum is 51.

The spelling of 28156714269 in words is "twenty-eight billion, one hundred fifty-six million, seven hundred fourteen thousand, two hundred sixty-nine".