811511861483 has 4 divisors (see below), whose sum is σ = 813125205648. Its totient is φ = 809898517320.

The previous prime is 811511861449. The next prime is 811511861513. The reversal of 811511861483 is 384168115118.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 384168115118 = 2 ⋅192084057559.

It is a cyclic number.

It is not a de Polignac number, because 811511861483 - 2⁸ = 811511861227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (811511861423) 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, 806671328 + ... + 806672333.

It is an arithmetic number, because the mean of its divisors is an integer number (203281301412).

Almost surely, 2^811511861483 is an apocalyptic number.

811511861483 is a deficient number, since it is larger than the sum of its proper divisors (1613344165).

811511861483 is a wasteful number, since it uses less digits than its factorization.

811511861483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613344164.

The product of its digits is 184320, while the sum is 47.

The spelling of 811511861483 in words is "eight hundred eleven billion, five hundred eleven million, eight hundred sixty-one thousand, four hundred eighty-three".