1157189772929 has 16 divisors (see below), whose sum is σ = 1271104617600. Its totient is φ = 1048579652736.

The previous prime is 1157189772901. The next prime is 1157189772971. The reversal of 1157189772929 is 9292779817511.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1157189772929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1157189772229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21155387 + ... + 21210015.

It is an arithmetic number, because the mean of its divisors is an integer number (79444038600).

Almost surely, 2^{1157189772929} is an apocalyptic number.

1157189772929 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1157189772929 is a deficient number, since it is larger than the sum of its proper divisors (113914844671).

1157189772929 is a wasteful number, since it uses less digits than its factorization.

1157189772929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103144.

The product of its digits is 40007520, while the sum is 68.

The spelling of 1157189772929 in words is "one trillion, one hundred fifty-seven billion, one hundred eighty-nine million, seven hundred seventy-two thousand, nine hundred twenty-nine".