142441426778 has 16 divisors (see below), whose sum is σ = 244204983744. Its totient is φ = 61041405600.

The previous prime is 142441426763. The next prime is 142441426783. The reversal of 142441426778 is 877624144241.

142441426778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×142441426778² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227300 + ... + 580127.

It is an arithmetic number, because the mean of its divisors is an integer number (15262811484).

Almost surely, 2^142441426778 is an apocalyptic number.

142441426778 is a deficient number, since it is larger than the sum of its proper divisors (101763556966).

142441426778 is a wasteful number, since it uses less digits than its factorization.

142441426778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820037.

The product of its digits is 2408448, while the sum is 50.

The spelling of 142441426778 in words is "one hundred forty-two billion, four hundred forty-one million, four hundred twenty-six thousand, seven hundred seventy-eight".