28729452458 has 8 divisors (see below), whose sum is σ = 49250489952. Its totient is φ = 12312622476.

The previous prime is 28729452431. The next prime is 28729452547. The reversal of 28729452458 is 85425492782.

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1026051860 + ... + 1026051887.

It is an arithmetic number, because the mean of its divisors is an integer number (6156311244).

Almost surely, 2^28729452458 is an apocalyptic number.

28729452458 is a deficient number, since it is larger than the sum of its proper divisors (20521037494).

28729452458 is a wasteful number, since it uses less digits than its factorization.

28729452458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052103756.

The product of its digits is 12902400, while the sum is 56.

The spelling of 28729452458 in words is "twenty-eight billion, seven hundred twenty-nine million, four hundred fifty-two thousand, four hundred fifty-eight".