1042721775706 has 16 divisors (see below), whose sum is σ = 1685160013824. Its totient is φ = 481038118704.

The previous prime is 1042721775653. The next prime is 1042721775709. The reversal of 1042721775706 is 6075771272401.

1042721775706 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1042721775706.

It is not an unprimeable number, because it can be changed into a prime (1042721775709) 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, 9028410 + ... + 9143173.

It is an arithmetic number, because the mean of its divisors is an integer number (105322500864).

Almost surely, 2^{1042721775706} is an apocalyptic number.

1042721775706 is a deficient number, since it is larger than the sum of its proper divisors (642438238118).

1042721775706 is a wasteful number, since it uses less digits than its factorization.

1042721775706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18173805.

The product of its (nonzero) digits is 1152480, while the sum is 49.

The spelling of 1042721775706 in words is "one trillion, forty-two billion, seven hundred twenty-one million, seven hundred seventy-five thousand, seven hundred six".