1157189772901 has 2 divisors, whose sum is σ = 1157189772902. Its totient is φ = 1157189772900.

The previous prime is 1157189772887. The next prime is 1157189772971. The reversal of 1157189772901 is 1092779817511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 970276220676 + 186913552225 = 985026^2 + 432335^2 .

It is a cyclic number.

It is not a de Polignac number, because 1157189772901 - 2¹⁹ = 1157189248613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1157189772971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578594886450 + 578594886451.

It is an arithmetic number, because the mean of its divisors is an integer number (578594886451).

Almost surely, 2^{1157189772901} is an apocalyptic number.

It is an amenable number.

1157189772901 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157189772901 is an equidigital number, since it uses as much as digits as its factorization.

1157189772901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2222640, while the sum is 58.

The spelling of 1157189772901 in words is "one trillion, one hundred fifty-seven billion, one hundred eighty-nine million, seven hundred seventy-two thousand, nine hundred one".