107878474981978 has 8 divisors (see below), whose sum is σ = 162070158204180. Its totient is φ = 53855088913920.

The previous prime is 107878474981943. The next prime is 107878474981999. The reversal of 107878474981978 is 879189474878701.

It can be written as a sum of positive squares in 2 ways, for example, as 88524520110009 + 19353954871969 = 9408747^2 + 4399313^2 .

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

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, 42074286933 + ... + 42074289496.

Almost surely, 2^{107878474981978} is an apocalyptic number.

107878474981978 is a deficient number, since it is larger than the sum of its proper divisors (54191683222202).

107878474981978 is an equidigital number, since it uses as much as digits as its factorization.

107878474981978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84148577072.

The product of its (nonzero) digits is 12745506816, while the sum is 88.

The spelling of 107878474981978 in words is "one hundred seven trillion, eight hundred seventy-eight billion, four hundred seventy-four million, nine hundred eighty-one thousand, nine hundred seventy-eight".