2691604474 has 16 divisors (see below), whose sum is σ = 4388616288. Its totient is φ = 1230667632.

The previous prime is 2691604459. The next prime is 2691604477. The reversal of 2691604474 is 4744061962.

It is a self number, because there is not a number n which added to its sum of digits gives 2691604474.

It is not an unprimeable number, because it can be changed into a prime (2691604477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480972 + ... + 486535.

It is an arithmetic number, because the mean of its divisors is an integer number (274288518).

Almost surely, 2^2691604474 is an apocalyptic number.

2691604474 is a deficient number, since it is larger than the sum of its proper divisors (1697011814).

2691604474 is a wasteful number, since it uses less digits than its factorization.

2691604474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967629.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 2691604474 is about 51880.6753425589. The cubic root of 2691604474 is about 1391.0318708250.

The spelling of 2691604474 in words is "two billion, six hundred ninety-one million, six hundred four thousand, four hundred seventy-four".