1198286419978 has 8 divisors (see below), whose sum is σ = 1839230319168. Its totient is φ = 585209646924.

The previous prime is 1198286419961. The next prime is 1198286419987. The reversal of 1198286419978 is 8799146828911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1198286419978.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6966781426 + ... + 6966781597.

It is an arithmetic number, because the mean of its divisors is an integer number (229903789896).

Almost surely, 2^{1198286419978} is an apocalyptic number.

1198286419978 is a deficient number, since it is larger than the sum of its proper divisors (640943899190).

1198286419978 is a wasteful number, since it uses less digits than its factorization.

1198286419978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13933563068.

The product of its digits is 125411328, while the sum is 73.

The spelling of 1198286419978 in words is "one trillion, one hundred ninety-eight billion, two hundred eighty-six million, four hundred nineteen thousand, nine hundred seventy-eight".