78281107198 has 16 divisors (see below), whose sum is σ = 134204054400. Its totient is φ = 33547078296.

The previous prime is 78281107183. The next prime is 78281107199. The reversal of 78281107198 is 89170118287.

It is a super-2 number, since 2×78281107198² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78281107199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97653 + ... + 407551.

It is an arithmetic number, because the mean of its divisors is an integer number (8387753400).

Almost surely, 2^78281107198 is an apocalyptic number.

78281107198 is a deficient number, since it is larger than the sum of its proper divisors (55922947202).

78281107198 is a wasteful number, since it uses less digits than its factorization.

78281107198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327951.

The product of its (nonzero) digits is 451584, while the sum is 52.

The spelling of 78281107198 in words is "seventy-eight billion, two hundred eighty-one million, one hundred seven thousand, one hundred ninety-eight".