2100973637 has 12 divisors (see below), whose sum is σ = 2474930880. Its totient is φ = 1778035896.

The previous prime is 2100973607. The next prime is 2100973639. The reversal of 2100973637 is 7363790012.

It is not a de Polignac number, because 2100973637 - 2²⁶ = 2033864773 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2100973637.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100973639) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 267503 + ... + 275244.

It is an arithmetic number, because the mean of its divisors is an integer number (206244240).

Almost surely, 2^2100973637 is an apocalyptic number.

It is an amenable number.

2100973637 is a deficient number, since it is larger than the sum of its proper divisors (373957243).

2100973637 is an equidigital number, since it uses as much as digits as its factorization.

2100973637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542840 (or 542833 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 38.

The square root of 2100973637 is about 45836.3789691114. The cubic root of 2100973637 is about 1280.7770422281. Note that the first 3 decimals are identical.

The spelling of 2100973637 in words is "two billion, one hundred million, nine hundred seventy-three thousand, six hundred thirty-seven".