1000218997870 has 16 divisors (see below), whose sum is σ = 1800723374208. Its totient is φ = 400014448480.

The previous prime is 1000218997787. The next prime is 1000218997873. The reversal of 1000218997870 is 787998120001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000218997873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9086389 + ... + 9195808.

It is an arithmetic number, because the mean of its divisors is an integer number (112545210888).

Almost surely, 2^{1000218997870} is an apocalyptic number.

1000218997870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1000218997870 is a deficient number, since it is larger than the sum of its proper divisors (800504376338).

1000218997870 is a wasteful number, since it uses less digits than its factorization.

1000218997870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18287675.

The product of its (nonzero) digits is 508032, while the sum is 52.

The spelling of 1000218997870 in words is "one trillion, two hundred eighteen million, nine hundred ninety-seven thousand, eight hundred seventy".