1157047789369 has 4 divisors (see below), whose sum is σ = 1157390824996. Its totient is φ = 1156704753744.

The previous prime is 1157047789333. The next prime is 1157047789393. The reversal of 1157047789369 is 9639877407511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1107335290000 + 49712499369 = 1052300^2 + 222963^2 .

It is a cyclic number.

It is not a de Polignac number, because 1157047789369 - 2²³ = 1157039400761 is a prime.

It is a super-2 number, since 2×1157047789369² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1157047789669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171512754 + ... + 171519499.

It is an arithmetic number, because the mean of its divisors is an integer number (289347706249).

Almost surely, 2^{1157047789369} is an apocalyptic number.

It is an amenable number.

1157047789369 is a deficient number, since it is larger than the sum of its proper divisors (343035627).

1157047789369 is an equidigital number, since it uses as much as digits as its factorization.

1157047789369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343035626.

The product of its (nonzero) digits is 80015040, while the sum is 67.

The spelling of 1157047789369 in words is "one trillion, one hundred fifty-seven billion, forty-seven million, seven hundred eighty-nine thousand, three hundred sixty-nine".