1162728765 has 24 divisors (see below), whose sum is σ = 2198615328. Its totient is φ = 563747040.

The previous prime is 1162728757. The next prime is 1162728767. The reversal of 1162728765 is 5678272611.

1162728765 is a `hidden beast` number, since 11 + 627 + 2 + 8 + 7 + 6 + 5 = 666.

It is not a de Polignac number, because 1162728765 - 2³ = 1162728757 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1162728765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1162728767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1173979 + ... + 1174968.

It is an arithmetic number, because the mean of its divisors is an integer number (91608972).

Almost surely, 2^1162728765 is an apocalyptic number.

1162728765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1162728765 is a deficient number, since it is larger than the sum of its proper divisors (1035886563).

1162728765 is a wasteful number, since it uses less digits than its factorization.

1162728765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2348969 (or 2348966 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 1162728765 is about 34098.8088501637. The cubic root of 1162728765 is about 1051.5408262384.

It can be divided in two parts, 1162 and 728765, that added together give a palindrome (729927).

The spelling of 1162728765 in words is "one billion, one hundred sixty-two million, seven hundred twenty-eight thousand, seven hundred sixty-five".