28376969247 has 32 divisors (see below), whose sum is σ = 46240849920. Its totient is φ = 17198141400.

The previous prime is 28376969227. The next prime is 28376969321. The reversal of 28376969247 is 74296967382.

It is not a de Polignac number, because 28376969247 - 2¹⁰ = 28376968223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28376969227) 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, 358879 + ... + 430752.

It is an arithmetic number, because the mean of its divisors is an integer number (1445026560).

Almost surely, 2^28376969247 is an apocalyptic number.

28376969247 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

28376969247 is a deficient number, since it is larger than the sum of its proper divisors (17863880673).

28376969247 is an equidigital number, since it uses as much as digits as its factorization.

28376969247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789673 (or 789645 counting only the distinct ones).

The product of its digits is 54867456, while the sum is 63.

The spelling of 28376969247 in words is "twenty-eight billion, three hundred seventy-six million, nine hundred sixty-nine thousand, two hundred forty-seven".