1485885811 has 4 divisors (see below), whose sum is σ = 1490375224. Its totient is φ = 1481396400.

The previous prime is 1485885803. The next prime is 1485885827. The reversal of 1485885811 is 1185885841.

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

It is a cyclic number.

It is not a de Polignac number, because 1485885811 - 2³ = 1485885803 is a prime.

It is a super-2 number, since 2×1485885811² = 4415713286662255442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1485885881) 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, 2244210 + ... + 2244871.

It is an arithmetic number, because the mean of its divisors is an integer number (372593806).

Almost surely, 2^1485885811 is an apocalyptic number.

1485885811 is a deficient number, since it is larger than the sum of its proper divisors (4489413).

1485885811 is an equidigital number, since it uses as much as digits as its factorization.

1485885811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4489412.

The product of its digits is 409600, while the sum is 49.

The square root of 1485885811 is about 38547.1894046764. The cubic root of 1485885811 is about 1141.1125414290.

The spelling of 1485885811 in words is "one billion, four hundred eighty-five million, eight hundred eighty-five thousand, eight hundred eleven".