1180808465 has 8 divisors (see below), whose sum is σ = 1443705768. Its totient is φ = 926823040.

The previous prime is 1180808449. The next prime is 1180808471. The reversal of 1180808465 is 5648080811.

It can be written as a sum of positive squares in 4 ways, for example, as 127870864 + 1052937601 = 11308^2 + 32449^2 .

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

It is not a de Polignac number, because 1180808465 - 2⁴ = 1180808449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2227676 + ... + 2228205.

It is an arithmetic number, because the mean of its divisors is an integer number (180463221).

Almost surely, 2^1180808465 is an apocalyptic number.

It is an amenable number.

1180808465 is a deficient number, since it is larger than the sum of its proper divisors (262897303).

1180808465 is an equidigital number, since it uses as much as digits as its factorization.

1180808465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4455939.

The product of its (nonzero) digits is 61440, while the sum is 41.

The square root of 1180808465 is about 34362.8937227353. The cubic root of 1180808465 is about 1056.9630842300.

The spelling of 1180808465 in words is "one billion, one hundred eighty million, eight hundred eight thousand, four hundred sixty-five".