1000999969812 has 48 divisors (see below), whose sum is σ = 2596841694720. Its totient is φ = 333453666816.

The previous prime is 1000999969811. The next prime is 1000999969829. The reversal of 1000999969812 is 2189699990001.

It is a super-2 number, since 2×1000999969812² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1000999969812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000999969811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2788173 + ... + 3126644.

It is an arithmetic number, because the mean of its divisors is an integer number (54100868640).

Almost surely, 2^{1000999969812} is an apocalyptic number.

1000999969812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1000999969812 is an abundant number, since it is smaller than the sum of its proper divisors (1595841724908).

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

1000999969812 is a wasteful number, since it uses less digits than its factorization.

1000999969812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5916397 (or 5916389 counting only the distinct ones).

The product of its (nonzero) digits is 5668704, while the sum is 63.

The spelling of 1000999969812 in words is "one trillion, nine hundred ninety-nine million, nine hundred sixty-nine thousand, eight hundred twelve".