42263331261 has 8 divisors (see below), whose sum is σ = 56724295104. Its totient is φ = 27988960800.

The previous prime is 42263331247. The next prime is 42263331269. The reversal of 42263331261 is 16213336224.

It is a happy number.

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

It is not a de Polignac number, because 42263331261 - 2⁷ = 42263331133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42263331269) 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, 46647816 + ... + 46648721.

It is an arithmetic number, because the mean of its divisors is an integer number (7090536888).

Almost surely, 2^42263331261 is an apocalyptic number.

It is an amenable number.

42263331261 is a deficient number, since it is larger than the sum of its proper divisors (14460963843).

42263331261 is a wasteful number, since it uses less digits than its factorization.

42263331261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93296691.

The product of its digits is 31104, while the sum is 33.

Adding to 42263331261 its reverse (16213336224), we get a palindrome (58476667485).

The spelling of 42263331261 in words is "forty-two billion, two hundred sixty-three million, three hundred thirty-one thousand, two hundred sixty-one".