28110662398 has 32 divisors (see below), whose sum is σ = 51910871040. Its totient is φ = 11117645280.

The previous prime is 28110662389. The next prime is 28110662407. The reversal of 28110662398 is 89326601182.

It is an interprime number because it is at equal distance from previous prime (28110662389) and next prime (28110662407).

It is a super-2 number, since 2×28110662398² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 712243 + ... + 750673.

It is an arithmetic number, because the mean of its divisors is an integer number (1622214720).

Almost surely, 2^28110662398 is an apocalyptic number.

28110662398 is a deficient number, since it is larger than the sum of its proper divisors (23800208642).

28110662398 is a wasteful number, since it uses less digits than its factorization.

28110662398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42472.

The product of its (nonzero) digits is 248832, while the sum is 46.

The spelling of 28110662398 in words is "twenty-eight billion, one hundred ten million, six hundred sixty-two thousand, three hundred ninety-eight".