2102676945 has 16 divisors (see below), whose sum is σ = 3366908160. Its totient is φ = 1120552704.

The previous prime is 2102676941. The next prime is 2102676973. The reversal of 2102676945 is 5496762012.

It is not a de Polignac number, because 2102676945 - 2² = 2102676941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2102676897 and 2102676906.

It is not an unprimeable number, because it can be changed into a prime (2102676941) 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, 34585 + ... + 73494.

It is an arithmetic number, because the mean of its divisors is an integer number (210431760).

Almost surely, 2^2102676945 is an apocalyptic number.

It is an amenable number.

2102676945 is a deficient number, since it is larger than the sum of its proper divisors (1264231215).

2102676945 is a wasteful number, since it uses less digits than its factorization.

2102676945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109384.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 2102676945 is about 45854.9555119182. The cubic root of 2102676945 is about 1281.1230672746.

The spelling of 2102676945 in words is "two billion, one hundred two million, six hundred seventy-six thousand, nine hundred forty-five".