42352426665 has 120 divisors (see below), whose sum is σ = 81139734720. Its totient is φ = 21094831296.

The previous prime is 42352426591. The next prime is 42352426673. The reversal of 42352426665 is 56662425324.

It is not a de Polignac number, because 42352426665 - 2⁸ = 42352426409 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 42352426665.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 17222206 + ... + 17224664.

It is an arithmetic number, because the mean of its divisors is an integer number (676164456).

Almost surely, 2^42352426665 is an apocalyptic number.

42352426665 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42352426665 is a deficient number, since it is larger than the sum of its proper divisors (38787308055).

42352426665 is a wasteful number, since it uses less digits than its factorization.

42352426665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2585 (or 2533 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 45.

The spelling of 42352426665 in words is "forty-two billion, three hundred fifty-two million, four hundred twenty-six thousand, six hundred sixty-five".