2100786254 has 16 divisors (see below), whose sum is σ = 3813192288. Its totient is φ = 847375872.

The previous prime is 2100786253. The next prime is 2100786283. The reversal of 2100786254 is 4526870012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100786253) 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, 4413179 + ... + 4413654.

It is an arithmetic number, because the mean of its divisors is an integer number (238324518).

Almost surely, 2^2100786254 is an apocalyptic number.

2100786254 is a deficient number, since it is larger than the sum of its proper divisors (1712406034).

2100786254 is a wasteful number, since it uses less digits than its factorization.

2100786254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8826859.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 2100786254 is about 45834.3348811783. The cubic root of 2100786254 is about 1280.7389641714.

The spelling of 2100786254 in words is "two billion, one hundred million, seven hundred eighty-six thousand, two hundred fifty-four".