1121778654683 has 16 divisors (see below), whose sum is σ = 1154553523200. Its totient is φ = 1089482792640.

The previous prime is 1121778654677. The next prime is 1121778654691. The reversal of 1121778654683 is 3864568771211.

It is a cyclic number.

It is not a de Polignac number, because 1121778654683 - 2³⁸ = 846900747739 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121778656683) 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, 6377210 + ... + 6550752.

It is an arithmetic number, because the mean of its divisors is an integer number (72159595200).

Almost surely, 2^{1121778654683} is an apocalyptic number.

1121778654683 is a deficient number, since it is larger than the sum of its proper divisors (32774868517).

1121778654683 is a wasteful number, since it uses less digits than its factorization.

1121778654683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174922.

The product of its digits is 13547520, while the sum is 59.

The spelling of 1121778654683 in words is "one trillion, one hundred twenty-one billion, seven hundred seventy-eight million, six hundred fifty-four thousand, six hundred eighty-three".