28096618090 has 16 divisors (see below), whose sum is σ = 50703929640. Its totient is φ = 11209754560.

The previous prime is 28096618021. The next prime is 28096618157. The reversal of 28096618090 is 9081669082.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14266152481 + 13830465609 = 119441^2 + 117603^2 .

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 7 ways as a sum of consecutive naturals, for example, 3607501 + ... + 3615280.

Almost surely, 2^28096618090 is an apocalyptic number.

28096618090 is a deficient number, since it is larger than the sum of its proper divisors (22607311550).

28096618090 is a wasteful number, since it uses less digits than its factorization.

28096618090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7223177.

The product of its (nonzero) digits is 373248, while the sum is 49.

The spelling of 28096618090 in words is "twenty-eight billion, ninety-six million, six hundred eighteen thousand, ninety".