1209200118464 has 56 divisors (see below), whose sum is σ = 2620479583008. Its totient is φ = 550231879680.

The previous prime is 1209200118457. The next prime is 1209200118487. The reversal of 1209200118464 is 4648110029021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10175897 + ... + 10294040.

It is an arithmetic number, because the mean of its divisors is an integer number (46794278268).

Almost surely, 2^{1209200118464} is an apocalyptic number.

It is an amenable number.

1209200118464 is an abundant number, since it is smaller than the sum of its proper divisors (1411279464544).

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

1209200118464 is a wasteful number, since it uses less digits than its factorization.

1209200118464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20470033 (or 20470023 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The spelling of 1209200118464 in words is "one trillion, two hundred nine billion, two hundred million, one hundred eighteen thousand, four hundred sixty-four".