1788292001161 has 2 divisors, whose sum is σ = 1788292001162. Its totient is φ = 1788292001160.

The previous prime is 1788292001147. The next prime is 1788292001273. The reversal of 1788292001161 is 1611002928871.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1744420185225 + 43871815936 = 1320765^2 + 209456^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1788292001161 is a prime.

It is not a weakly prime, because it can be changed into another prime (1788292001101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 894146000580 + 894146000581.

It is an arithmetic number, because the mean of its divisors is an integer number (894146000581).

Almost surely, 2^{1788292001161} is an apocalyptic number.

It is an amenable number.

1788292001161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1788292001161 is an equidigital number, since it uses as much as digits as its factorization.

1788292001161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 46.

The spelling of 1788292001161 in words is "one trillion, seven hundred eighty-eight billion, two hundred ninety-two million, one thousand, one hundred sixty-one".