2149694674 has 12 divisors (see below), whose sum is σ = 3249238842. Its totient is φ = 1066620800.

The previous prime is 2149694671. The next prime is 2149694683. The reversal of 2149694674 is 4764969412.

It can be written as a sum of positive squares in 3 ways, for example, as 1912750225 + 236944449 = 43735^2 + 15393^2 .

It is not an unprimeable number, because it can be changed into a prime (2149694671) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 766074 + ... + 768874.

Almost surely, 2^2149694674 is an apocalyptic number.

2149694674 is a deficient number, since it is larger than the sum of its proper divisors (1099544168).

2149694674 is an frugal number, since it uses more digits than its factorization.

2149694674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5741 (or 2940 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 52.

The square root of 2149694674 is about 46364.7999456484. The cubic root of 2149694674 is about 1290.6017812026.

The spelling of 2149694674 in words is "two billion, one hundred forty-nine million, six hundred ninety-four thousand, six hundred seventy-four".