1121426375779 has 16 divisors (see below), whose sum is σ = 1158664292800. Its totient is φ = 1084563976320.

The previous prime is 1121426375723. The next prime is 1121426375791. The reversal of 1121426375779 is 9775736241211.

It is a cyclic number.

It is not a de Polignac number, because 1121426375779 - 2⁷ = 1121426375651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121426372779) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7443037 + ... + 7592209.

It is an arithmetic number, because the mean of its divisors is an integer number (72416518300).

Almost surely, 2^{1121426375779} is an apocalyptic number.

1121426375779 is a deficient number, since it is larger than the sum of its proper divisors (37237917021).

1121426375779 is a wasteful number, since it uses less digits than its factorization.

1121426375779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150430.

The product of its digits is 4445280, while the sum is 55.

The spelling of 1121426375779 in words is "one trillion, one hundred twenty-one billion, four hundred twenty-six million, three hundred seventy-five thousand, seven hundred seventy-nine".