42403281973 has 32 divisors (see below), whose sum is σ = 47594252160. Its totient is φ = 37509346560.

The previous prime is 42403281961. The next prime is 42403281997. The reversal of 42403281973 is 37918230424.

It is a cyclic number.

It is not a de Polignac number, because 42403281973 - 2¹⁷ = 42403150901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42403281923) by changing a digit.

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, 39964863 + ... + 39965923.

It is an arithmetic number, because the mean of its divisors is an integer number (1487320380).

Almost surely, 2^42403281973 is an apocalyptic number.

It is an amenable number.

42403281973 is a deficient number, since it is larger than the sum of its proper divisors (5190970187).

42403281973 is a wasteful number, since it uses less digits than its factorization.

42403281973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797.

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 42403281973 in words is "forty-two billion, four hundred three million, two hundred eighty-one thousand, nine hundred seventy-three".