42128239479273 has 192 divisors, whose sum is σ = 67609110240000. Its totient is φ = 25850808115200.

The previous prime is 42128239479253. The next prime is 42128239479281. The reversal of 42128239479273 is 37297493282124.

It is a happy number.

42128239479273 is a `hidden beast` number, since 4 + 2 + 12 + 82 + 3 + 9 + 479 + 2 + 73 = 666.

It is not a de Polignac number, because 42128239479273 - 2⁸ = 42128239479017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42128239479273.

It is not an unprimeable number, because it can be changed into a prime (42128239479253) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 75634181911 + ... + 75634182467.

It is an arithmetic number, because the mean of its divisors is an integer number (352130782500).

Almost surely, 2^{42128239479273} is an apocalyptic number.

It is an amenable number.

42128239479273 is a deficient number, since it is larger than the sum of its proper divisors (25480870760727).

42128239479273 is a wasteful number, since it uses less digits than its factorization.

42128239479273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033 (or 926 counting only the distinct ones).

The product of its digits is 73156608, while the sum is 63.

The spelling of 42128239479273 in words is "forty-two trillion, one hundred twenty-eight billion, two hundred thirty-nine million, four hundred seventy-nine thousand, two hundred seventy-three".