1480865689 has 4 divisors (see below), whose sum is σ = 1520889124. Its totient is φ = 1440842256.

The previous prime is 1480865677. The next prime is 1480865779. The reversal of 1480865689 is 9865680841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9865680841 = 47 ⋅209908103.

It can be written as a sum of positive squares in 2 ways, for example, as 1414361664 + 66504025 = 37608^2 + 8155^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1480865689 is a prime.

It is a super-3 number, since 3×1480865689³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1480865669) 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, 20011662 + ... + 20011735.

It is an arithmetic number, because the mean of its divisors is an integer number (380222281).

Almost surely, 2^1480865689 is an apocalyptic number.

It is an amenable number.

1480865689 is a deficient number, since it is larger than the sum of its proper divisors (40023435).

1480865689 is an equidigital number, since it uses as much as digits as its factorization.

1480865689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40023434.

The product of its (nonzero) digits is 3317760, while the sum is 55.

The square root of 1480865689 is about 38482.0177355606. The cubic root of 1480865689 is about 1139.8259940121.

The spelling of 1480865689 in words is "one billion, four hundred eighty million, eight hundred sixty-five thousand, six hundred eighty-nine".