2691733642 has 32 divisors (see below), whose sum is σ = 4400439120. Its totient is φ = 1234808640.

The previous prime is 2691733637. The next prime is 2691733657. The reversal of 2691733642 is 2463371962.

It can be written as a sum of positive squares in 8 ways, for example, as 95481 + 2691638161 = 309^2 + 51881^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 758392 + ... + 761932.

Almost surely, 2^2691733642 is an apocalyptic number.

2691733642 is a deficient number, since it is larger than the sum of its proper divisors (1708705478).

2691733642 is a wasteful number, since it uses less digits than its factorization.

2691733642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3755 (or 3729 counting only the distinct ones).

The product of its digits is 326592, while the sum is 43.

The square root of 2691733642 is about 51881.9201842029. The cubic root of 2691733642 is about 1391.0541219807.

The spelling of 2691733642 in words is "two billion, six hundred ninety-one million, seven hundred thirty-three thousand, six hundred forty-two".