42128097623 has 2 divisors, whose sum is σ = 42128097624. Its totient is φ = 42128097622.

The previous prime is 42128097589. The next prime is 42128097691. The reversal of 42128097623 is 32679082124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42128097623 - 2¹⁰ = 42128096599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42128057623) by changing a digit.

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 as a sum of consecutive naturals, namely, 21064048811 + 21064048812.

It is an arithmetic number, because the mean of its divisors is an integer number (21064048812).

Almost surely, 2^42128097623 is an apocalyptic number.

42128097623 is a deficient number, since it is larger than the sum of its proper divisors (1).

42128097623 is an equidigital number, since it uses as much as digits as its factorization.

42128097623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 42128097623 in words is "forty-two billion, one hundred twenty-eight million, ninety-seven thousand, six hundred twenty-three".