42122757970945 has 8 divisors (see below), whose sum is σ = 51404043625920. Its totient is φ = 33127050336240.

The previous prime is 42122757970883. The next prime is 42122757970967. The reversal of 42122757970945 is 54907975722124.

It is a happy number.

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

It is not a de Polignac number, because 42122757970945 - 2⁴³ = 33326664948737 is a prime.

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, 71394504741 + ... + 71394505330.

It is an arithmetic number, because the mean of its divisors is an integer number (6425505453240).

Almost surely, 2^{42122757970945} is an apocalyptic number.

It is an amenable number.

42122757970945 is a deficient number, since it is larger than the sum of its proper divisors (9281285654975).

42122757970945 is a wasteful number, since it uses less digits than its factorization.

42122757970945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142789010135.

The product of its (nonzero) digits is 88905600, while the sum is 64.

The spelling of 42122757970945 in words is "forty-two trillion, one hundred twenty-two billion, seven hundred fifty-seven million, nine hundred seventy thousand, nine hundred forty-five".