1036991818633 has 4 divisors (see below), whose sum is σ = 1065018624580. Its totient is φ = 1008965012688.

The previous prime is 1036991818591. The next prime is 1036991818651. The reversal of 1036991818633 is 3368181996301.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 831722112144 + 205269706489 = 911988^2 + 453067^2 .

It is a cyclic number.

It is not a de Polignac number, because 1036991818633 - 2²⁹ = 1036454947721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1036991818433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14013402918 + ... + 14013402991.

It is an arithmetic number, because the mean of its divisors is an integer number (266254656145).

Almost surely, 2^{1036991818633} is an apocalyptic number.

It is an amenable number.

1036991818633 is a deficient number, since it is larger than the sum of its proper divisors (28026805947).

1036991818633 is an equidigital number, since it uses as much as digits as its factorization.

1036991818633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28026805946.

The product of its (nonzero) digits is 5038848, while the sum is 58.

The spelling of 1036991818633 in words is "one trillion, thirty-six billion, nine hundred ninety-one million, eight hundred eighteen thousand, six hundred thirty-three".