1918486468 has 12 divisors (see below), whose sum is σ = 3534054160. Its totient is φ = 908756712.

The previous prime is 1918486459. The next prime is 1918486477. The reversal of 1918486468 is 8646848191.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1918486459) and next prime (1918486477).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12621546 + ... + 12621697.

Almost surely, 2^1918486468 is an apocalyptic number.

It is an amenable number.

1918486468 is a deficient number, since it is larger than the sum of its proper divisors (1615567692).

1918486468 is a wasteful number, since it uses less digits than its factorization.

1918486468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25243266 (or 25243264 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 55.

The square root of 1918486468 is about 43800.5304534089. The cubic root of 1918486468 is about 1242.5663265391.

The spelling of 1918486468 in words is "one billion, nine hundred eighteen million, four hundred eighty-six thousand, four hundred sixty-eight".