1422143490978 has 24 divisors (see below), whose sum is σ = 3521498168448. Its totient is φ = 406326711672.

The previous prime is 1422143490947. The next prime is 1422143491033. The reversal of 1422143490978 is 8790943412241.

1422143490978 is a `hidden beast` number, since 1 + 4 + 2 + 2 + 143 + 490 + 9 + 7 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5643426426 + ... + 5643426677.

It is an arithmetic number, because the mean of its divisors is an integer number (146729090352).

Almost surely, 2^{1422143490978} is an apocalyptic number.

1422143490978 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1422143490978 is an abundant number, since it is smaller than the sum of its proper divisors (2099354677470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1422143490978 is a wasteful number, since it uses less digits than its factorization.

1422143490978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11286853118 (or 11286853115 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 1422143490978 in words is "one trillion, four hundred twenty-two billion, one hundred forty-three million, four hundred ninety thousand, nine hundred seventy-eight".