2645743102 has 4 divisors (see below), whose sum is σ = 3968614656. Its totient is φ = 1322871550.

The previous prime is 2645743073. The next prime is 2645743159. The reversal of 2645743102 is 2013475462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2013475462 = 2 ⋅1006737731.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661435774 + ... + 661435777.

It is an arithmetic number, because the mean of its divisors is an integer number (992153664).

Almost surely, 2^2645743102 is an apocalyptic number.

2645743102 is a deficient number, since it is larger than the sum of its proper divisors (1322871554).

2645743102 is a wasteful number, since it uses less digits than its factorization.

2645743102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322871553.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 2645743102 is about 51436.7874385639. The cubic root of 2645743102 is about 1383.0861238157.

The spelling of 2645743102 in words is "two billion, six hundred forty-five million, seven hundred forty-three thousand, one hundred two".