1811406388059 has 24 divisors (see below), whose sum is σ = 2725039261152. Its totient is φ = 1158417469440.

The previous prime is 1811406388037. The next prime is 1811406388067. The reversal of 1811406388059 is 9508836041181.

It is a happy number.

1811406388059 is a `hidden beast` number, since 1 + 81 + 1 + 406 + 38 + 80 + 59 = 666.

It is not a de Polignac number, because 1811406388059 - 2⁸ = 1811406387803 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1811406387996 and 1811406388014.

It is not an unprimeable number, because it can be changed into a prime (1811406388019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38283814 + ... + 38331099.

It is an arithmetic number, because the mean of its divisors is an integer number (113543302548).

Almost surely, 2^{1811406388059} is an apocalyptic number.

1811406388059 is a deficient number, since it is larger than the sum of its proper divisors (913632873093).

1811406388059 is a wasteful number, since it uses less digits than its factorization.

1811406388059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76615027 (or 76615024 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 54.

The spelling of 1811406388059 in words is "one trillion, eight hundred eleven billion, four hundred six million, three hundred eighty-eight thousand, fifty-nine".