1868196266 has 32 divisors (see below), whose sum is σ = 3011904000. Its totient is φ = 865942272.

The previous prime is 1868196259. The next prime is 1868196313. The reversal of 1868196266 is 6626918681.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2226275 + ... + 2227113.

It is an arithmetic number, because the mean of its divisors is an integer number (94122000).

Almost surely, 2^1868196266 is an apocalyptic number.

1868196266 is a deficient number, since it is larger than the sum of its proper divisors (1143707734).

1868196266 is a wasteful number, since it uses less digits than its factorization.

1868196266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766.

The product of its digits is 1492992, while the sum is 53.

The square root of 1868196266 is about 43222.6360371507. The cubic root of 1868196266 is about 1231.6127227132.

The spelling of 1868196266 in words is "one billion, eight hundred sixty-eight million, one hundred ninety-six thousand, two hundred sixty-six".