1009373818494 has 16 divisors (see below), whose sum is σ = 2029207471632. Its totient is φ = 334714633728.

The previous prime is 1009373818493. The next prime is 1009373818513. The reversal of 1009373818494 is 4948183739001.

It is a happy number.

It is a super-2 number, since 2×1009373818494² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1009373818493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435825189 + ... + 435827504.

It is an arithmetic number, because the mean of its divisors is an integer number (126825466977).

Almost surely, 2^{1009373818494} is an apocalyptic number.

1009373818494 is an abundant number, since it is smaller than the sum of its proper divisors (1019833653138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1009373818494 is a wasteful number, since it uses less digits than its factorization.

1009373818494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871652891.

The product of its (nonzero) digits is 5225472, while the sum is 57.

The spelling of 1009373818494 in words is "one trillion, nine billion, three hundred seventy-three million, eight hundred eighteen thousand, four hundred ninety-four".