2102698653 has 16 divisors (see below), whose sum is σ = 3133069632. Its totient is φ = 1243280000.

The previous prime is 2102698649. The next prime is 2102698673. The reversal of 2102698653 is 3568962012.

It is a cyclic number.

It is not a de Polignac number, because 2102698653 - 2² = 2102698649 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102698673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 775698 + ... + 778403.

It is an arithmetic number, because the mean of its divisors is an integer number (195816852).

Almost surely, 2^2102698653 is an apocalyptic number.

It is an amenable number.

2102698653 is a deficient number, since it is larger than the sum of its proper divisors (1030370979).

2102698653 is a wasteful number, since it uses less digits than its factorization.

2102698653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554156.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 2102698653 is about 45855.1922141866. The cubic root of 2102698653 is about 1281.1274760234.

The spelling of 2102698653 in words is "two billion, one hundred two million, six hundred ninety-eight thousand, six hundred fifty-three".