28729326734 has 8 divisors (see below), whose sum is σ = 43094845368. Its totient is φ = 14364378280.

The previous prime is 28729326727. The next prime is 28729326739. The reversal of 28729326734 is 43762392782.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28729326739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20909 + ... + 240615.

It is an arithmetic number, because the mean of its divisors is an integer number (5386855671).

Almost surely, 2^28729326734 is an apocalyptic number.

28729326734 is a deficient number, since it is larger than the sum of its proper divisors (14365518634).

28729326734 is a wasteful number, since it uses less digits than its factorization.

28729326734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285090.

The product of its digits is 6096384, while the sum is 53.

The spelling of 28729326734 in words is "twenty-eight billion, seven hundred twenty-nine million, three hundred twenty-six thousand, seven hundred thirty-four".