2102728245106 has 8 divisors (see below), whose sum is σ = 3162037185900. Its totient is φ = 1048715849808.

The previous prime is 2102728245077. The next prime is 2102728245113. The reversal of 2102728245106 is 6015428272012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1942134896025 + 160593349081 = 1393605^2 + 400741^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1324135381 + ... + 1324136968.

Almost surely, 2^{2102728245106} is an apocalyptic number.

2102728245106 is a deficient number, since it is larger than the sum of its proper divisors (1059308940794).

2102728245106 is a wasteful number, since it uses less digits than its factorization.

2102728245106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2648272748.

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 2102728245106 in words is "two trillion, one hundred two billion, seven hundred twenty-eight million, two hundred forty-five thousand, one hundred six".