42261654265 has 8 divisors (see below), whose sum is σ = 50716492488. Its totient is φ = 33807651840.

The previous prime is 42261654263. The next prime is 42261654277. The reversal of 42261654265 is 56245616224.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 535829904 + 41725824361 = 23148^2 + 204269^2 .

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

It is not a de Polignac number, because 42261654265 - 2¹ = 42261654263 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42261654263) 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, 91726 + ... + 304855.

It is an arithmetic number, because the mean of its divisors is an integer number (6339561561).

Almost surely, 2^42261654265 is an apocalyptic number.

It is an amenable number.

42261654265 is a deficient number, since it is larger than the sum of its proper divisors (8454838223).

42261654265 is a wasteful number, since it uses less digits than its factorization.

42261654265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417899.

The product of its digits is 691200, while the sum is 43.

The spelling of 42261654265 in words is "forty-two billion, two hundred sixty-one million, six hundred fifty-four thousand, two hundred sixty-five".