218075196807 has 32 divisors (see below), whose sum is σ = 348208199360. Its totient is φ = 134091365760.

The previous prime is 218075196793. The next prime is 218075196853. The reversal of 218075196807 is 708691570812.

It is not a de Polignac number, because 218075196807 - 2⁶ = 218075196743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218075196107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 183057 + ... + 685317.

It is an arithmetic number, because the mean of its divisors is an integer number (10881506230).

Almost surely, 2^218075196807 is an apocalyptic number.

218075196807 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

218075196807 is a deficient number, since it is larger than the sum of its proper divisors (130133002553).

218075196807 is a wasteful number, since it uses less digits than its factorization.

218075196807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503520 (or 503514 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 54.

The spelling of 218075196807 in words is "two hundred eighteen billion, seventy-five million, one hundred ninety-six thousand, eight hundred seven".