1868118922 has 4 divisors (see below), whose sum is σ = 2802178386. Its totient is φ = 934059460.

The previous prime is 1868118887. The next prime is 1868118929. The reversal of 1868118922 is 2298118681.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1736305561 + 131813361 = 41669^2 + 11481^2 .

It is not an unprimeable number, because it can be changed into a prime (1868118929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 467029729 + ... + 467029732.

Almost surely, 2^1868118922 is an apocalyptic number.

1868118922 is a deficient number, since it is larger than the sum of its proper divisors (934059464).

1868118922 is an equidigital number, since it uses as much as digits as its factorization.

1868118922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934059463.

The product of its digits is 110592, while the sum is 46.

The square root of 1868118922 is about 43221.7413115205. The cubic root of 1868118922 is about 1231.5957260748.

The spelling of 1868118922 in words is "one billion, eight hundred sixty-eight million, one hundred eighteen thousand, nine hundred twenty-two".