2100845757 has 8 divisors (see below), whose sum is σ = 2839499584. Its totient is φ = 1381377888.

The previous prime is 2100845743. The next prime is 2100845777. The reversal of 2100845757 is 7575480012.

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

It is not a de Polignac number, because 2100845757 - 2¹⁹ = 2100321469 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 (2100845717) 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 7 ways as a sum of consecutive naturals, for example, 4796233 + ... + 4796670.

It is an arithmetic number, because the mean of its divisors is an integer number (354937448).

Almost surely, 2^2100845757 is an apocalyptic number.

It is an amenable number.

2100845757 is a deficient number, since it is larger than the sum of its proper divisors (738653827).

2100845757 is an equidigital number, since it uses as much as digits as its factorization.

2100845757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9592979.

The product of its (nonzero) digits is 78400, while the sum is 39.

The square root of 2100845757 is about 45834.9839860341. The cubic root of 2100845757 is about 1280.7510560078.

The spelling of 2100845757 in words is "two billion, one hundred million, eight hundred forty-five thousand, seven hundred fifty-seven".