2656269194 has 4 divisors (see below), whose sum is σ = 3984403794. Its totient is φ = 1328134596.

The previous prime is 2656269151. The next prime is 2656269221. The reversal of 2656269194 is 4919626562.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4919626562 = 2 ⋅2459813281.

It can be written as a sum of positive squares in only one way, i.e., 2161785025 + 494484169 = 46495^2 + 22237^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664067297 + ... + 664067300.

Almost surely, 2^2656269194 is an apocalyptic number.

2656269194 is a deficient number, since it is larger than the sum of its proper divisors (1328134600).

2656269194 is a wasteful number, since it uses less digits than its factorization.

2656269194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328134599.

The product of its digits is 1399680, while the sum is 50.

The square root of 2656269194 is about 51539.0065290359. The cubic root of 2656269194 is about 1384.9178999673.

The spelling of 2656269194 in words is "two billion, six hundred fifty-six million, two hundred sixty-nine thousand, one hundred ninety-four".