142175442340778 has 64 divisors (see below), whose sum is σ = 274466922356736. Its totient is φ = 53605494360000.

The previous prime is 142175442340759. The next prime is 142175442340793. The reversal of 142175442340778 is 877043244571241.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 571547828 + ... + 571796528.

It is an arithmetic number, because the mean of its divisors is an integer number (4288545661824).

Almost surely, 2^{142175442340778} is an apocalyptic number.

142175442340778 is a deficient number, since it is larger than the sum of its proper divisors (132291480015958).

142175442340778 is a wasteful number, since it uses less digits than its factorization.

142175442340778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368499.

The product of its (nonzero) digits is 42147840, while the sum is 59.

The spelling of 142175442340778 in words is "one hundred forty-two trillion, one hundred seventy-five billion, four hundred forty-two million, three hundred forty thousand, seven hundred seventy-eight".