1157189772229 has 2 divisors, whose sum is σ = 1157189772230. Its totient is φ = 1157189772228.

The previous prime is 1157189772227. The next prime is 1157189772241. The reversal of 1157189772229 is 9222779817511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1017126709729 + 140063062500 = 1008527^2 + 374250^2 .

It is a cyclic number.

It is not a de Polignac number, because 1157189772229 - 2¹ = 1157189772227 is a prime.

Together with 1157189772227, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1157189772223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578594886114 + 578594886115.

It is an arithmetic number, because the mean of its divisors is an integer number (578594886115).

Almost surely, 2^{1157189772229} is an apocalyptic number.

It is an amenable number.

1157189772229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157189772229 is an equidigital number, since it uses as much as digits as its factorization.

1157189772229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8890560, while the sum is 61.

The spelling of 1157189772229 in words is "one trillion, one hundred fifty-seven billion, one hundred eighty-nine million, seven hundred seventy-two thousand, two hundred twenty-nine".