28102994101 has 8 divisors (see below), whose sum is σ = 34588300544. Its totient is φ = 22235335920.

The previous prime is 28102994089. The next prime is 28102994147. The reversal of 28102994101 is 10149920182.

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

It is not a de Polignac number, because 28102994101 - 2⁷ = 28102993973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28102994201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154411965 + ... + 154412146.

It is an arithmetic number, because the mean of its divisors is an integer number (4323537568).

Almost surely, 2^28102994101 is an apocalyptic number.

It is an amenable number.

28102994101 is a deficient number, since it is larger than the sum of its proper divisors (6485306443).

28102994101 is a wasteful number, since it uses less digits than its factorization.

28102994101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308824131.

The product of its (nonzero) digits is 10368, while the sum is 37.

The spelling of 28102994101 in words is "twenty-eight billion, one hundred two million, nine hundred ninety-four thousand, one hundred one".