28190336101 has 4 divisors (see below), whose sum is σ = 29416002912. Its totient is φ = 26964669292.

The previous prime is 28190336089. The next prime is 28190336123. The reversal of 28190336101 is 10163309182.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28190336101 - 2¹³ = 28190327909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28190336131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 612833371 + ... + 612833416.

It is an arithmetic number, because the mean of its divisors is an integer number (7354000728).

Almost surely, 2^28190336101 is an apocalyptic number.

It is an amenable number.

28190336101 is a deficient number, since it is larger than the sum of its proper divisors (1225666811).

28190336101 is a wasteful number, since it uses less digits than its factorization.

28190336101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225666810.

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 28190336101 in words is "twenty-eight billion, one hundred ninety million, three hundred thirty-six thousand, one hundred one".