28815831730774 has 8 divisors (see below), whose sum is σ = 47153179195848. Its totient is φ = 13098105332160.

The previous prime is 28815831730757. The next prime is 28815831730813. The reversal of 28815831730774 is 47703713851882.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 654905266587 + ... + 654905266630.

It is an arithmetic number, because the mean of its divisors is an integer number (5894147399481).

Almost surely, 2^{28815831730774} is an apocalyptic number.

28815831730774 is a deficient number, since it is larger than the sum of its proper divisors (18337347465074).

28815831730774 is a wasteful number, since it uses less digits than its factorization.

28815831730774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309810533230.

The product of its (nonzero) digits is 63221760, while the sum is 64.

The spelling of 28815831730774 in words is "twenty-eight trillion, eight hundred fifteen billion, eight hundred thirty-one million, seven hundred thirty thousand, seven hundred seventy-four".