2690842698 has 12 divisors (see below), whose sum is σ = 5830159218. Its totient is φ = 896947560.

The previous prime is 2690842663. The next prime is 2690842747. The reversal of 2690842698 is 8962480962.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2534417649 + 156425049 = 50343^2 + 12507^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 74745613 + ... + 74745648.

Almost surely, 2^2690842698 is an apocalyptic number.

2690842698 is an abundant number, since it is smaller than the sum of its proper divisors (3139316520).

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

2690842698 is a wasteful number, since it uses less digits than its factorization.

2690842698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149491269 (or 149491266 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The square root of 2690842698 is about 51873.3332069571. Note that the first 3 decimals coincide. The cubic root of 2690842698 is about 1390.9006288232.

The spelling of 2690842698 in words is "two billion, six hundred ninety million, eight hundred forty-two thousand, six hundred ninety-eight".