612178142198 has 16 divisors (see below), whose sum is σ = 1049472245760. Its totient is φ = 262356060456.

The previous prime is 612178142197. The next prime is 612178142239. The reversal of 612178142198 is 891241871216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612178142197) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 164393 + ... + 1118651.

It is an arithmetic number, because the mean of its divisors is an integer number (65592015360).

Almost surely, 2^612178142198 is an apocalyptic number.

612178142198 is a deficient number, since it is larger than the sum of its proper divisors (437294103562).

612178142198 is a wasteful number, since it uses less digits than its factorization.

612178142198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000091.

The product of its digits is 387072, while the sum is 50.

The spelling of 612178142198 in words is "six hundred twelve billion, one hundred seventy-eight million, one hundred forty-two thousand, one hundred ninety-eight".