28651764334 has 16 divisors (see below), whose sum is σ = 45516070368. Its totient is φ = 13480123392.

The previous prime is 28651764313. The next prime is 28651764347. The reversal of 28651764334 is 43346715682.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60079 + ... + 246805.

It is an arithmetic number, because the mean of its divisors is an integer number (2844754398).

Almost surely, 2^28651764334 is an apocalyptic number.

28651764334 is a deficient number, since it is larger than the sum of its proper divisors (16864306034).

28651764334 is a wasteful number, since it uses less digits than its factorization.

28651764334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191259.

The product of its digits is 2903040, while the sum is 49.

The spelling of 28651764334 in words is "twenty-eight billion, six hundred fifty-one million, seven hundred sixty-four thousand, three hundred thirty-four".