28077112429 has 8 divisors (see below), whose sum is σ = 29076217632. Its totient is φ = 27093741360.

The previous prime is 28077112417. The next prime is 28077112447. The reversal of 28077112429 is 92421177082.

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 28077112429 - 2²³ = 28068723821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28077110429) 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, 3929902 + ... + 3937039.

It is an arithmetic number, because the mean of its divisors is an integer number (3634527204).

Almost surely, 2^28077112429 is an apocalyptic number.

It is an amenable number.

28077112429 is a deficient number, since it is larger than the sum of its proper divisors (999105203).

28077112429 is an equidigital number, since it uses as much as digits as its factorization.

28077112429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7867067.

The product of its (nonzero) digits is 112896, while the sum is 43.

The spelling of 28077112429 in words is "twenty-eight billion, seventy-seven million, one hundred twelve thousand, four hundred twenty-nine".