1018473200640 has 1584 divisors, whose sum is σ = 4299440064192. Its totient is φ = 222061658112.

The previous prime is 1018473200639. The next prime is 1018473200699. The reversal of 1018473200640 is 460023748101.

1018473200640 is a `hidden beast` number, since 1 + 0 + 1 + 8 + 4 + 7 + 3 + 2 + 0 + 0 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1018473200595 and 1018473200604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 6098641837 + ... + 6098642003.

Almost surely, 2^{1018473200640} is an apocalyptic number.

1018473200640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1018473200640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2149720032096).

1018473200640 is an abundant number, since it is smaller than the sum of its proper divisors (3280966863552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1018473200640 is a wasteful number, since it uses less digits than its factorization.

1018473200640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

Adding to 1018473200640 its reverse (460023748101), we get a palindrome (1478496948741).

The spelling of 1018473200640 in words is "one trillion, eighteen billion, four hundred seventy-three million, two hundred thousand, six hundred forty".