1128731692765 has 8 divisors (see below), whose sum is σ = 1359874359648. Its totient is φ = 899387802000.

The previous prime is 1128731692763. The next prime is 1128731692771. The reversal of 1128731692765 is 5672961378211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1128731692765 - 2¹ = 1128731692763 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128731692763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 449692647 + ... + 449695156.

It is an arithmetic number, because the mean of its divisors is an integer number (169984294956).

Almost surely, 2^{1128731692765} is an apocalyptic number.

It is an amenable number.

1128731692765 is a deficient number, since it is larger than the sum of its proper divisors (231142666883).

1128731692765 is an equidigital number, since it uses as much as digits as its factorization.

1128731692765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899388059.

The product of its digits is 7620480, while the sum is 58.

The spelling of 1128731692765 in words is "one trillion, one hundred twenty-eight billion, seven hundred thirty-one million, six hundred ninety-two thousand, seven hundred sixty-five".