2100646996393 has 4 divisors (see below), whose sum is σ = 2291614905168. Its totient is φ = 1909679087620.

The previous prime is 2100646996363. The next prime is 2100646996397. The reversal of 2100646996393 is 3936996460012.

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 2100646996393 - 2¹⁷ = 2100646865321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100646996397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95483954371 + ... + 95483954392.

It is an arithmetic number, because the mean of its divisors is an integer number (572903726292).

Almost surely, 2^{2100646996393} is an apocalyptic number.

It is an amenable number.

2100646996393 is a deficient number, since it is larger than the sum of its proper divisors (190967908775).

2100646996393 is a wasteful number, since it uses less digits than its factorization.

2100646996393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190967908774.

The product of its (nonzero) digits is 11337408, while the sum is 58.

The spelling of 2100646996393 in words is "two trillion, one hundred billion, six hundred forty-six million, nine hundred ninety-six thousand, three hundred ninety-three".