123078364198 has 16 divisors (see below), whose sum is σ = 202783576320. Its totient is φ = 55765482696.

The previous prime is 123078364187. The next prime is 123078364219. The reversal of 123078364198 is 891463870321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70410090 + ... + 70411837.

It is an arithmetic number, because the mean of its divisors is an integer number (12673973520).

Almost surely, 2^123078364198 is an apocalyptic number.

123078364198 is a deficient number, since it is larger than the sum of its proper divisors (79705212122).

123078364198 is a wasteful number, since it uses less digits than its factorization.

123078364198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140821971.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 123078364198 in words is "one hundred twenty-three billion, seventy-eight million, three hundred sixty-four thousand, one hundred ninety-eight".