1043979193009 has 3 divisors (see below), whose sum is σ = 1043980214763. Its totient is φ = 1043978171256.

The previous prime is 1043979193007. The next prime is 1043979193013. The reversal of 1043979193009 is 9003919793401.

It is a happy number.

The square root of 1043979193009 is 1021753.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 289040640625 + 754938552384 = 537625^2 + 868872^2 .

It is not a de Polignac number, because 1043979193009 - 2¹ = 1043979193007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1043979193003) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 510877 + ... + 1532629.

It is an arithmetic number, because the mean of its divisors is an integer number (347993404921).

Almost surely, 2^{1043979193009} is an apocalyptic number.

1043979193009 is the 1021753-rd square number.

1043979193009 is the 510877-th centered octagonal number.

It is an amenable number.

1043979193009 is a deficient number, since it is larger than the sum of its proper divisors (1021754).

1043979193009 is an frugal number, since it uses more digits than its factorization.

1043979193009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043506 (or 1021753 counting only the distinct ones).

The product of its (nonzero) digits is 1653372, while the sum is 55.

The spelling of 1043979193009 in words is "one trillion, forty-three billion, nine hundred seventy-nine million, one hundred ninety-three thousand, nine".