1009739321618 has 16 divisors (see below), whose sum is σ = 1594856689440. Its totient is φ = 478138140000.

The previous prime is 1009739321587. The next prime is 1009739321629. The reversal of 1009739321618 is 8161239379001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4313168 + ... + 4541243.

It is an arithmetic number, because the mean of its divisors is an integer number (99678543090).

Almost surely, 2^{1009739321618} is an apocalyptic number.

1009739321618 is a deficient number, since it is larger than the sum of its proper divisors (585117367822).

1009739321618 is a wasteful number, since it uses less digits than its factorization.

1009739321618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8857433.

The product of its (nonzero) digits is 489888, while the sum is 50.

The spelling of 1009739321618 in words is "one trillion, nine billion, seven hundred thirty-nine million, three hundred twenty-one thousand, six hundred eighteen".