28274297659929 has 32 divisors (see below), whose sum is σ = 42443223091200. Its totient is φ = 18832533285168.

The previous prime is 28274297659919. The next prime is 28274297660023. The reversal of 28274297659929 is 92995679247282.

28274297659929 is a `hidden beast` number, since 2 + 8 + 27 + 429 + 7 + 65 + 99 + 29 = 666.

It is not a de Polignac number, because 28274297659929 - 2¹⁵ = 28274297627161 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is not an unprimeable number, because it can be changed into a prime (28274297659919) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3403449 + ... + 8254214.

It is an arithmetic number, because the mean of its divisors is an integer number (1326350721600).

Almost surely, 2^{28274297659929} is an apocalyptic number.

It is an amenable number.

28274297659929 is a deficient number, since it is larger than the sum of its proper divisors (14168925431271).

28274297659929 is an equidigital number, since it uses as much as digits as its factorization.

28274297659929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11658793 (or 11658775 counting only the distinct ones).

The product of its digits is 4938071040, while the sum is 81.

The spelling of 28274297659929 in words is "twenty-eight trillion, two hundred seventy-four billion, two hundred ninety-seven million, six hundred fifty-nine thousand, nine hundred twenty-nine".