1098968618 has 32 divisors (see below), whose sum is σ = 1834980480. Its totient is φ = 489448960.

The previous prime is 1098968609. The next prime is 1098968627. The reversal of 1098968618 is 8168698901.

It is an interprime number because it is at equal distance from previous prime (1098968609) and next prime (1098968627).

It is a Curzon number.

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, 218771 + ... + 223737.

It is an arithmetic number, because the mean of its divisors is an integer number (57343140).

Almost surely, 2^1098968618 is an apocalyptic number.

1098968618 is a deficient number, since it is larger than the sum of its proper divisors (736011862).

1098968618 is a wasteful number, since it uses less digits than its factorization.

1098968618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5182.

The product of its (nonzero) digits is 1492992, while the sum is 56.

The square root of 1098968618 is about 33150.6955884790. The cubic root of 1098968618 is about 1031.9573857421.

The spelling of 1098968618 in words is "one billion, ninety-eight million, nine hundred sixty-eight thousand, six hundred eighteen".