1898663068 has 12 divisors (see below), whose sum is σ = 3323644632. Its totient is φ = 949050320.

The previous prime is 1898663051. The next prime is 1898663099. The reversal of 1898663068 is 8603668981.

It is a happy number.

It is a congruent number.

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, 54730 + ... + 82417.

It is an arithmetic number, because the mean of its divisors is an integer number (276970386).

Almost surely, 2^1898663068 is an apocalyptic number.

It is an amenable number.

1898663068 is a deficient number, since it is larger than the sum of its proper divisors (1424981564).

1898663068 is a wasteful number, since it uses less digits than its factorization.

1898663068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140612 (or 140610 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 55.

The square root of 1898663068 is about 43573.6510749329. The cubic root of 1898663068 is about 1238.2717573234.

The spelling of 1898663068 in words is "one billion, eight hundred ninety-eight million, six hundred sixty-three thousand, sixty-eight".