42343453261 has 8 divisors (see below), whose sum is σ = 44207688384. Its totient is φ = 40481152800.

The previous prime is 42343453249. The next prime is 42343453277. The reversal of 42343453261 is 16235434324.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42343453261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42343453261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42343453861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438840 + ... + 526561.

It is an arithmetic number, because the mean of its divisors is an integer number (5525961048).

Almost surely, 2^42343453261 is an apocalyptic number.

It is an amenable number.

42343453261 is a deficient number, since it is larger than the sum of its proper divisors (1864235123).

42343453261 is a wasteful number, since it uses less digits than its factorization.

42343453261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967331.

The product of its digits is 207360, while the sum is 37.

Adding to 42343453261 its reverse (16235434324), we get a palindrome (58578887585).

The spelling of 42343453261 in words is "forty-two billion, three hundred forty-three million, four hundred fifty-three thousand, two hundred sixty-one".