1018920009219 has 16 divisors (see below), whose sum is σ = 1552680867840. Its totient is φ = 582224685120.

The previous prime is 1018920009203. The next prime is 1018920009221. The reversal of 1018920009219 is 9129000298101.

It is not a de Polignac number, because 1018920009219 - 2⁴ = 1018920009203 is a prime.

It is a super-2 number, since 2×1018920009219² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1018920009229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204654 + ... + 1442124.

It is an arithmetic number, because the mean of its divisors is an integer number (97042554240).

Almost surely, 2^{1018920009219} is an apocalyptic number.

1018920009219 is a deficient number, since it is larger than the sum of its proper divisors (533760858621).

1018920009219 is a wasteful number, since it uses less digits than its factorization.

1018920009219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276690.

The product of its (nonzero) digits is 23328, while the sum is 42.

The spelling of 1018920009219 in words is "one trillion, eighteen billion, nine hundred twenty million, nine thousand, two hundred nineteen".