2691844494 has 32 divisors (see below), whose sum is σ = 5687134080. Its totient is φ = 847042272.

The previous prime is 2691844459. The next prime is 2691844501. The reversal of 2691844494 is 4944481962.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9457 + ... + 73980.

It is an arithmetic number, because the mean of its divisors is an integer number (177722940).

Almost surely, 2^2691844494 is an apocalyptic number.

2691844494 is an abundant number, since it is smaller than the sum of its proper divisors (2995289586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2691844494 is a wasteful number, since it uses less digits than its factorization.

2691844494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83744.

The product of its digits is 1990656, while the sum is 51.

The square root of 2691844494 is about 51882.9884837024. The cubic root of 2691844494 is about 1391.0732173588.

The spelling of 2691844494 in words is "two billion, six hundred ninety-one million, eight hundred forty-four thousand, four hundred ninety-four".