28098761384 has 8 divisors (see below), whose sum is σ = 52685177610. Its totient is φ = 14049380688.

The previous prime is 28098761351. The next prime is 28098761393. The reversal of 28098761384 is 48316789082.

It can be written as a sum of positive squares in only one way, i.e., 27499588900 + 599172484 = 165830^2 + 24478^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1756172579 + ... + 1756172594.

Almost surely, 2^28098761384 is an apocalyptic number.

It is an amenable number.

28098761384 is a deficient number, since it is larger than the sum of its proper divisors (24586416226).

28098761384 is a wasteful number, since it uses less digits than its factorization.

28098761384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3512345179 (or 3512345175 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 56.

The spelling of 28098761384 in words is "twenty-eight billion, ninety-eight million, seven hundred sixty-one thousand, three hundred eighty-four".