1042661489773 has 8 divisors (see below), whose sum is σ = 1088393342400. Its totient is φ = 996962865888.

The previous prime is 1042661489767. The next prime is 1042661489797. The reversal of 1042661489773 is 3779841662401.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1042661489773 - 2¹⁷ = 1042661358701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042661489873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8243043 + ... + 8368576.

It is an arithmetic number, because the mean of its divisors is an integer number (136049167800).

Almost surely, 2^{1042661489773} is an apocalyptic number.

It is an amenable number.

1042661489773 is a deficient number, since it is larger than the sum of its proper divisors (45731852627).

1042661489773 is a wasteful number, since it uses less digits than its factorization.

1042661489773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16614371.

The product of its (nonzero) digits is 12192768, while the sum is 58.

The spelling of 1042661489773 in words is "one trillion, forty-two billion, six hundred sixty-one million, four hundred eighty-nine thousand, seven hundred seventy-three".